The Big Bang Theory

Leonard and Penny

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I do. I do.

Leonard and Penny's relationship has been a major subject in the series since the beginning of season one pilot episode. All of the season finales involve Leonard's relationship with Penny in some way.

Penny's First Romantic Relationships With Leonard (On and Off and On) (2007-2012)Edit

When Penny first met Leonard, she only thought as him as a neighbor and a friend and had no romantic feelings for him at first. She asked favors of him and talked and visited him nearly every day. She ate take-out food with him and the others. He took Penny out for dinner in "The Fuzzy Boots Corollary"; however, Penny thought the whole gang was coming. When no one else showed up she suspected their evening was supposed to be a date. At the end of the season 1 after another bad break-up, she confessed she wanted to go out with a guy like him and with that, Leonard asked her out which she accepted. Their date went well though Penny wanted to take it slow. Afterwards, Penny gets the idea that he won't date a girl that doesn't have a college degree derailing a second date at that time.


Leonard and Penny's relationship had many awkward moments.

At the end of Season 2, the episode "The Monopolar Expedition", Leonard and the others were arranged to go to the North Pole for three months. In that episode, she gave him a blanket with sleeves and gave him a long hug, which made Leonard concerned about leaving her. When he asked her what it meant, she said it was just a going away present. After he left and she closed the door, she whispered, "It means I wish you weren't going" revealing her hidden feelings. When Leonard returned at the beginning of Season 3, he went to see Penny and she greeted him with a passionate kiss which Leonard happily returned. Leonard gave her a preserved snowflake which she loved and they began going out again. After a quick trip to Texas to bring Sheldon home, the new couple finally consummated their relationship which they both described as weird.

Throughout season 3, they learned about each other and explored the limits of their relationship. There were some fights like Leonard belittling her for believing in psychics ("The Psychic Vortex") or Penny not telling him about her letting an ex-boyfriend stay in her apartment ("The Guitarist Amplification"), though there was a lot of make-up sex and a lot of compromises mainly by Leonard. Sheldon was often frustrated with the constant presence of Penny within his inner circle and the couple many times were treating him like they were his parents.

In the episode "The Wheaton Recurrence," Leonard told Penny he loved her, which surprised her because she wasn't ready for it, but they both got over it when they had to help Sheldon win a bet against Wil Wheaton in a bowling match. Wil Wheaton told Penny that it would be kinder to break-up with Leonard right away, which later was revealed to be a trick to win the bet, but Penny had already broken up with Leonard, believing it would help him.

In Season 4, his next girlfriend Priya wanted Leonard to stop hanging out with Penny. Penny agreed to it to help Leonard move on with his relationship. Penny hated Priya because of that and got upset with not talking to Leonard as much. At the end of Season 4, she admitted to Raj she regretted breaking up with Leonard, and ends up sleeping with Raj.

Penny and Leonard 2.0 (2012-2014)Edit

In "The Recombination Hypothesis", Leonard (haven broken up with Priya) decided to ask Penny out on a date and envisioned a possible ending of that date. In his fantasy, things did not go well the second time around, but he decided to go ahead and ask her out anyway, and Penny agreed to go. The episode ended with Penny envisioning herself very pregnant at a wedding of necessity with Leonard, a possible reason for her reluctance to go out with him again and her need to pick up her birth control pills. She also issues since other members of her family were pregnant when they got married. Leonard and Penny's fantasies regarding their possible reconciliation proved to have their merits when in the following episode, #101, (Season 5 Episode 14), "The Beta Test Initiation", it was shown that the two were contemplating to be official again. However, to avoid the mistakes from their first time together, they decided to take things slow by treating the relationship as a beta test, and even went to the length of presenting each other Bug reports to settle any issues.
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Things seemed to be going well by the end of the episode, with Penny kissing Leonard at his doorstep after their date and at the shooting range. In "The Friendship Contraction", it was apparent that the two are definitely in a relationship again, though they taking things slow this time around, and the beta test that was still very much going on. During a blackout at the apartment, Leonard opted to hang out with Penny at her apartment and the two were about to make out when Sheldon interrupted them.

In "The Launch Acceleration", Penny suggested that they move up their relationship and get intimate; however Leonard ruined the mood when he asked her to marry him while they were having sex making their relationship feel weird to Penny.

Season 6 starts with them on a date in "The Date Night Variable" where a lonely Raj crashes their date and insists that Penny tell Leonard that she loves him. Leonard wants to talk about their relationship; however she has had a hard day and wants to just hang out together. Penny is expressing doubts about her feelings for Leonard, though she claims to be happy with the relationship in "The Decoupling Fluctuation".
The Launch Acceleration Leonard and Penny

A little fight after Leonard asked Penny to marry him while they were having sex.

She almost tells Leonard about her doubts and then ends up sleeping with him after looking into his sad eyes. In "The Higgs Boson Observation", Penny while spying with Amy sees Sheldon's pretty new graduate assistant Alex Jensen flirting with Leonard who is not responding. Later when Sheldon and Alex enter the apartment, Penny tells her about Leonard and their five year experiment together (relationship) and then she leads him off to her apartment for sex. In the Halloween theme episode "The Holographic Excitation", Penny gets advice from Bernadette that you get out of a relationship what you put into it and that maybe Penny should get more interested in Leonard's work (it is also revealed that, up until this point, Penny's view of their relationship had been one-sided in her favor). She visits his lab and is wowed by his holographic images and says that she sometimes forgets how smart he is. Penny heats up their relationship by starting to engage in sex in different locations, twice in his lab and twice in the TARDIS photo booth at the Halloween party.

Penny and Leonard, Valentine's Day 2013. Leonard tells Penny to ask him to marry her when she is ready.

In the episode "The 43 Peculiarity", Penny is working on a class oral project with an English student, Cole, who makes Leonard jealous. Leonard follows Cole down the stairs warning him about Penny's boyfriend, the "gang leader". Penny witnesses his deception and gets mad at Leonard telling him that he has nothing to worry about because she chooses to be with him and that he knows that she loves him. This pronouncement shocks both of them since Penny has never told Leonard that she loves him and she runs off scared before she breaks into tears. At the same time, Sheldon's assistant Alex Jensen is starting to hit on Leonard though he doesn't recognize her intentions. In "The Egg Salad Equivalency", Alex asks Leonard out to dinner after he expresses an interest in the Physics lecture she is going to and this attention really startles Leonard. Though it makes him feel good "to the bones" to have an attractive young woman interested in him, he tells everyone he still loves Penny and wouldn't do anything about it. He mentions Alex's actions to Sheldon who tries to talk to her about it and lands the whole gang in the Human Resources Administrator's office. He also didn't tell Penny about Alex's actions which made her feel really insecure about their relationship. Leonard apologizes by showing up at her door playing a little ditty on his cello.

In "The Spoiler Alert Segmentation", Leonard suggests that he move in with Penny after he again gets exasperated (again) with Sheldon. He asks her if she's all right with it, but she only agrees not to hurt his feelings and even tells Sheldon. She does try to get him admit that Sheldon can't get along without him. Amy plans to move in with Sheldon as roommates. When Amy confronts Penny since she can't move in with Sheldon, Leonard overhears the conversation. Penny tells him that he never asked her if she was ready. Then Amy and Penny go off to drink and talk about their jerky boyfriends and Leonard ends up back in Apartment 4A. Amy also scares Penny when in anger says that she and Penny should move in together. In "The Tangible Affection Proof", Leonard takes Penny out to dinner for Valentine's Day. Penny feels that all the efforts never meets the the expectations and she will end up disappointed. At dinner, Penny sees an old boyfriend proposing to the girl that broke them up. Leonard again tries to propose and Penny stops him. They begin to argue in front of Howard and Bernadette who have their own issues that night. After they barely say good night, Leonard tells Penny that she ruined the whole evening. Penny finally admits that she has commitment issues. She is so happy right now that she knows they are going to get married and since that relationship is forever that scares her. Leonard then puts the responsibility of proposing on her and that she should do it when she's ready. In the end, she does ask him to be her valentine.

In "The Closure Alternative", Penny was concerned about the passion Leonard showed for science, comics books, and various television shows while she had no passion in her life. Her dreams had always been to become a famous movie star and live a glamorous life. Anything less than that she felt was settling. Her epiphany came that she is passionate about her boyfriend Leonard and all her wonderful friends. 

In "The Bon Voyage Reaction", Leonard takes a job working on a Stephen Hawking expedition in the North Sea for four months over the summer. Penny will miss him, but knows that it is a good opportunity and sends him off. At the airport, she is fussing over him like a wife sending her husband off on a business trip. She also has to watch Sheldon over the summer, too.

Goodbye for four months.

Season 7 Edit

In "The Hofstadter Insufficiency", Leonard hurts Penny because he seems to be having such a great time on the ship, she thinks that he is not even missing her. In "The Deception Verification", Leonard makes up for it by showing up early and hides in her apartment so that they can spend time together a couple before telling the gang that he's back. It works until Amy and Sheldon find them together after they think that Penny is cheating on Leonard.

In "The Raiders Minimization", Penny purchases a psychology book that Beverly Hofstadter has written about all his problems growing up for a night school class. Leonard finds out that Penny will do things he wants to do [ditch going to a sports bar, watch geeky shows, and have sex] and uses her. Leonard mentions it to Howard, so his actions make it back to Penny. She dresses up for sex tempting him and then for revenge makes him skype with his mother to discuss his actions much to Leonard's disgust.

In "The Romance Resonance", Howard makes a romantic gesture to Bernadette by writing her a song. Leonard mentions that Penny never does anything like that, except for sex which doesn't count. Penny is determined to romance Leonard. Raj can only suggest that she cook for him or reenact a scene from a romantic movie. Finally after a candlelight dinner, Penny puts on some romantic music, spreads rose petals into her neatly cleaned bedroom and presents Leonard with a first edition of his favorite book from when he was growing up, The Hitchhiker Guide to the Galaxy. Unfortunately, Leonard had already purchased the book after they had seen it in a used bookstore together. Penny gets upset telling him about all the thoughtful things he had done for her and shows him her collection. An airplane ticket, a rose given to her "just because" and the eleven page letter he wrote her after the first time they slept together. Leonard was very touched that she kept all these things. He then kisses her, showing that Penny did do something romantic.

Penny planning a crap storm of romance for Leonard.

In "The Thanksgiving Decoupling", Penny reminisces about a Thanksgiving she had in Las Vegas with former boyfriend Zack Johnson which included one of those "silly fake weddings". Penny appears devastated when her friends inform her that the wedding was real and she is Mrs. Zack Johnson. Penny and Leonard argue about how quickly she should get her annulment so Penny invites Zack over to their Thanksgiving dinner at Howard's mother. Zack appears as dimwitted as ever telling them that breaking up can be hard on the kids which they don't have. Finally, Penny and Leonard make up and she tells him that the next time she gets married it will be for real, for love (jokingly) or for money.

In "The Hesitation Ramification" and "The Occupation Recalibration", Penny gets a part in the TV series NCIS and is very disappointed when her scene is cut and not aired. Frustrated and tipsy, she sees her life crumbling when Leonard reminds her that she still has him. She agrees with him and probably to show some advancement in her life, she kneels down and proposes to him. All Leonard can utter is "Umm", much like when he wouldn't succumb to her drunken advances after her Halloween party in "The Middle Earth Paradigm". Penny gets very upset since she doesn't think he wants to marry her. After she storms out, Leonard is afraid to ask her if their relationship is now over. The next day/episode he does visit Penny who assures him that they are still together and that he did the right thing not agreeing to her proposal because she was a mess. Now she has rethought her career and decides to quit the Cheesecake Factory and focus all of her time on acting. Leonard does support her though he is obviously worried about her.

Drunken Penny proposing to Leonard.


Happy Thanksgiving, Leonard.

In "The Table Polarization", the gang wants to add a dining room table to Apartment 4A which Sheldon objects to. Penny gets Leonard to pick out a dining set that she likes and gets Leonard to stand up more against Sheldon. Sheldon objects to Penny changing Leonard to stand up against him. Penny points out that Amy has changed Sheldon who agrees and then decides to break up with Amy.

In "The Mommy Observation", Raj has a murder mystery night where they speculate where they will be twenty years in the future. The couple start thinking about how they will deal with each other's success. Penny figures that Leonard will follow her around if she is famous and making a lot of money while Leonard thinks that he might be tenured at a university and can move around. Finally Stuart ends the argument saying that he thinks that they have the strongest relationship he knows. Penny brought Leonard out of his shell and Leonard got Penny thinking about her place in the bigger picture.

The Engagement (2014-2015)Edit

In "The Gorilla Dissolution", Leonard and Penny get back in her apartment after getting fired from her movie. Penny wants to start making smarter decisions about her life. She says that they could get married and Leonard asks her to be serious. Leonard wonders if he is a smart decision, like choosing a healthy boring bran muffin. Penny doesn't care what pastry he is because she is CHOOSING HIM. Leonard is still talking about being a pastry like a Cinnabon or a Strawberry Pop Tart something that she is excited about. Penny tells him to forget about it. Leonard does want to marry her, but feels that she is just feeling sorry for herself because she was fired. Penny explains that it may seem that way, but getting fired made her think that fame and fortune is not what is going make her happy. Leonard wants to know what will make her happy. "You, you stupid Pop Tart!" she yells at him. Leonard finally says that he guesses that he is in, which also bothers Penny. Leonard then retorts that it is an excited "I guess I'm in" and they agree that they are engaged which still seems somewhat anti-climactic. To change the mood, Leonard pulls a diamond ring out of his wallet that he has had for a couple of years, gets down on one knee and asks Penny formally. Penny says "Oh my God, yes!" He slips the ring on her finger that still has ape hair glued to it and they embrace.

Penny says "yes" to Leonard's proposal.

In "The Status Quo Combustion", Leonard and Penny announce their engagement; however, the gang is more excited about Raj and Emily hooking up. Leonard goes searching for the missing Sheldon and finds him at the railroad station leaving time to think about all the changes in his life. Leonard wants him to come home, but Penny convinces him that he should let Sheldon go.

In "The First Pitch Insufficiency", they go on a double-date with Shamy where Sheldon is bragging about their relationship is so much better than theirs. Shamy has an 8.2 out of ten for relationship stability based upon well proven criteria. Leonard looks at it; however, Penny doesn't want to take the test. She already has his doubt and doesn't need them confirmed. They are engaged and still have very little in common which scares her. It also scares Leonard, but he still want to face all their problems together. His reassure really touches Penny and Amy who would like Sheldon to say things like that. Penny's fear of getting married and being pregnant from "The Recombination Hypothesis, is revisited as she wants to prove to her family that she is not getting married due to a pregnancy like her sister.


Prom on the roof.

In "The Hook-up Reverberation", Raj tells the gang that Stuart didn't get enough insurance money to reopen his store. The guys decide to give him the money and were enthusiastic about owning a comic book store. Leonard talks to Penny who wonders why they should even be talking about finances. Leonard say that they are getting married. Then Penny wonders if mounds of credit card debt will affect them financially. What is her current financial position?

In "The Prom Equivalency", Amy and Bernadette throw a do-over prom on the roof of the apartment building. Penny is at first reluctant to attend the party because they always disappoint her, but Leonard tells her that he really wants to take the most beautiful girl to the prom, this time. She wears her old red prom dress. The roof is decorated wonderfully and Penny really gets into the mood. While others are still getting there, Penny and Leonard dance alone without any music on the roof. First they conclude that they probably would not have approached each other if they had been at the same prom. They are both definitely in a romantic mood, while Penny is also glad they aren't having the drama normally seen at proms.

In "The Space Probe Disintegration", Leonard tells Sheldon that his attitude is why he and Penny are not living together. After a tearful period thinking about them him moving out, Sheldon let's him go one night a week to stay at Penny's. Sheldon still sleeps on her couch that night. Leonard and Penny are finally living together once a week.

In "The Colonization Application", Leonard goes to the dirty book store and gets a sex painting kit, where they cover themselves in body paint and have sex on a canvass. Not satisfied with their first try, they do it again to prove that they are not a boring couple. Happy with the next one, Penny will not hang it in her apartment, but plans to give it to Sheldon and tell him that William Shatner painted it.

In "The Fortification Implementation", Leonard and Penny appear on Wil Wheaton's podcast for him and Penny to talk about and take calls about their horrible ape movie. Actor/director Kevin Smith calls in and is a big fan of the movie and he loved Penny's performance. He wants Penny to audition for his new movie "Clerks 3". Leonard reminds her that she already has a job. Penny and Leonard have an intense discussion about her career. Penny reminds him that they could have a wonderful life if she becomes rich and famous. Leonard is just trying to protect her after all her other acting disappointments. Penny just wants him to be happy for her. He was happy for her when she got her current job that pays a decent wage. Decent? She makes twice what Leonard makes. Penny has been putting together a diversified portfolio of stocks and bonds with her broker. Leonard says he doesn't because he doesn't have any money. Leonard wonders who the mature one now in this relationship is. Penny asks him if he would feel better if she did something stupid like sneaking out from work and trying out for a Kevin Smith movie. Leonard agrees and Wil Wheaton comments that Penny just played him like a violin.  


This is CRAZY!!

In "The Commitment Determination", Sheldon keeps pushing them for a wedding date. The couple insists that they aren't in a hurry, are in a good place emotionally and are concentrating on their careers. Thinking about the wedding details they decide on a small church wedding dressed in black tie tuxes and no releasing of butterflies. Suddenly Penny smiles and sits close to Leonard. She tell shim that she's free that night. They could go to Vegas and just get married. Leonard agrees. Sheldon is happy for them, but still doesn't want them to sit in his spot. Driving to Vegas, Penny is very happy and glad that they took their time to get to know each other. No surprises and no regrets. Leonard has on regret where he was drunk and made out with a woman on his North Sea expedition. Penny was not happy, but still wants to marry him. They were last seen still heading to Vegas to a wedding chapel.

Marriage (2015-  ) ("Our children will be smart and beautiful.")Edit

In "The Matrimonial Momentum", Penny and Leonard finally do get married in a little ceremony in a Las Vegas wedding chapel. Leonard tells Penny, "Penny, we are made of particles that have existed since the universe began. I like to think those atoms have travelled 14 billion years through time and space to create us so that we could be together and make each other whole." Penny is very touched and due to them being best friends, she quotes the song "You got a friend in me" to Leonard. Leonard carries Penny across the threshold and everything seems OK until they start to kiss. Penny can't help but think about Leonard with the other girl. Leonard tries to downplay the experience. He says he feels guilty every time he sees her. Penny finding out that he works with her and sees her on a regular basis is not happy at all. The last scene is both of them arguing as they come up the stairs of the apartment building and they each go into their own apartments.

The wedding that makes the series.

In "The Separation Oscillation", Leonard has a nightmare that Penny got even with him by making out with Sheldon. This spurs Leonard to try to make things right. He finally confronts Mandy, his kissing buddy from the North Sea, about the incident and it doesn't seem to mean much to her. Leonard also realizes that he really was trying to sabotage the relationship. He went and talked with Penny and tells her. She too realizes the she has been trying to sabotage their relationship. There is a sweet moment when Leonard gets down on one knee and asks, "Penny Hofstadter, will you please stay married to me?" They head into the bedroom to formalize their marriage. Later Sheldon gives them a wedding present - a trip to San Francisco for the three of them.


  • Interestingly, this is the only major (and current) relationship on the show that was not set up by someone else or a third party. Howard and Bernadette were set up by Penny, Sheldon and Amy were set up by Howard and Raj, who posted Sheldon's information on a dating site and set up a date, and Raj and Emily met through online dating.
  • Whole relationship started with Leonard's infatuation with Penny followed by her appreciation of how loyal, faithful and what great guy he is. Being that cute and that smart also turns her on.


The Wedding Decision:

Penny: Um, I’m free tonight.
Leonard: Are you saying you want to get married?
Penny: Vegas isn’t that far away.
Leonard: I’m in. Let’s do it.
Sheldon: After all these years. I’m really happy for the two of you.
Penny: Oh, thank you.
Leonard: Thanks.
Sheldon: Now get out of my spot.

The Engagement:

Penny: Oh, my God. What a day.
Leonard: Can I get you anything?
Penny: No. I need to start making some smart decisions.
Leonard: With your career?
Penny: With my life.
Leonard: Like what?
Penny: I don’t know. We could get married.
Leonard: Come on, be serious.
Penny: I am.
Leonard: Why? Because I’m a, a smart decision?
Penny: Well, yeah.
Leonard: So I’m like a bran muffin.
Penny: What? No, that’s not what I’m saying.
Leonard: No, it’s exactly what you’re saying. I’m the boring thing you’re choosing because I’m good for you.
Penny: What does it matter? The point is, I’m choosing you.
Leonard: Well, it matters a lot. I don’t want to be a bran muffin. I, I want to be a Cinnabon, you know? A strawberry Pop-Tart. Something you’re excited about even though it could give you diabetes.
Penny: Sweetie, you can be any pastry you want.
Leonard: No, no. No, it’s too late. I’m your bran muffin. Probably fat-free and good for your colon.
Penny: You know what? Forget it. I never should’ve brought it up.
Leonard: You know I want to marry you, but you’re only doing this because you got fired and you’re feeling sorry for yourself.
Penny: Okay, it may look that way, but getting fired from that movie was the best thing that could have happened to me, okay? I finally realize I don’t need to be famous or have some big career to be happy.
Leonard: Then what do you need?
Penny: You, you stupid Pop-Tart.
Leonard: Oh. Then I guess I’m in.
Penny: Really? You guess you’re in?
Leonard: Not like, I guess I’m in. Like I guess, I’m in!
Penny: Okay. Leonard: Cool.
Leonard: So is that it? Are, are we engaged?
Penny: Yeah, I think so.
Leonard: All right.
Penny: What’s wrong?
Leonard: I’m not sure. Just feels a little anticlimactic.
Penny: Yeah, it kind of does, huh?
Leonard: Oh, I know. This might help.
Penny: Where did you get a ring?
Leonard: I’ve had it for a couple years, not important. Penny, will you marry me?
Penny: Oh, my God, yes.
Leonard: This would have been so much more romantic if you didn’t have monkey hair on your finger.

Leonard's "I love you, Penny" Confession:

Penny: Having a little trouble catching your breath there?
Leonard: No, no, I’m good. If my P.E. teachers had told me this is what I was training for I would have tried a lot harder.
Penny: Do or do not. There is no try.
Leonard: Did you just quote Star Wars?
Penny: I believe I quoted Empire Strikes Back.
Leonard: Oh, my God. I’m lying in bed with a beautiful woman who can quote Yoda. I love you, Penny.
Penny: Oh. Oh. Thank you.
Leonard: You’re welcome. I just wanted to put that out there.
Penny: Oh, yeah, no, I, I’m, I’m glad.
Leonard: Good. Glad is good.
Penny: Yeah. Yeah. No, no. Um. So, it’s getting pretty late. We should probably go to sleep.
Leonard: Yeah.
Penny: Okay.
Leonard: Yeah.
Penny: Hmm.
Leonard: Yeah, probably.
Penny: Okay, good night, sweetie.
Leonard: Good night. (Penny looks shocked.)

Third Season Breakup:

Penny: Leonard, stop pressuring me.
Leonard: I’m not pressuring you.
Penny: Yeah, you are! Just back off!
Leonard: Okay, I’m sorry. I’ll shut up.
Penny: I didn't mean shut up.
Leonard: Fine. Just tell me what to do, and I’ll do it.
Penny: No, this isn't fair to you, Leonard. I’m sorry.
Sheldon: Wait! Where are you going? Penny, come back! I’ll get you ice cream!
Leonard: No, let her go.
Sheldon: Are you insane? If she leaves, it’s over!
Leonard: I’m pretty sure it’s already over.

Third Season Hookup:

Penny: Leonard, you’re back.
Leonard: Yeah, I just stopped by to say… (She grabs him and kisses him passionately.) Yeah, so, hi!
Penny: Hi! (They stumble, kissing, into her apartment and slam the door shut.)
Howard: Dammit, I should have gone over and told her we were back.
Raj: (Sarcastically) Yeah, it was first come, first served.

Arctic Farewell:

Penny: Oh, Leonard, what time is it?
Leonard: Its 7 a.m. I’m sorry it’s early, but we’re leaving soon, and I needed to talk to you.
Penny: Okay.
Leonard: What did you mean when you said you’re going to miss me?
Penny: Um, I don’t know. You’ll be gone and I’ll notice.
Leonard: (indicating the blanket) Okay, well, um, what about this? What does this mean?
Penny: Wine, credit card and late night television are a bad combination.
Leonard: All right, fine. What about that really long hug? What did that mean?
Penny: That wasn't a long hug.
Leonard: It was at least five Mississippi’s. A standard hug is two Mississippi’s tops.
Penny: Leonard, I don’t know what to tell you. It was just a hug.
Leonard: Glad we cleared that up.
Penny: Yeah.
Leonard: I guess I’ll see you.
Penny: Okay, have a safe trip.
Leonard: Thank you. Bye.
Penny: Okay, bye. (Penny closes door. Says to herself) It means I wish you weren’t going.

Leonard Asks Penny Out:

Penny: I swear to God, I am done with guys like that. You know, macho, with the perfect body and the hair, and the money.
Leonard: Yeah, that must get old quick.
Penny: You know, just once, I would like to go out with someone who is nice, and honest, and who actually cares about me.
Leonard: What about me?
Penny: What about you what?
Leonard: What about if you went out with me?
Penny: Are you asking me out?
Leonard: Um… yes… I am… asking you out.
Penny: Wow.
Leonard: I was just going off your comment about the nice guy…
Penny: No, I know, I got that. Yeah, totally.
Leonard: (continuing through Penny): …thing and honest but, it’s no big deal…
Penny: Yes.
Leonard: Yes what?
Penny: Yes, I will go out with you.
Leonard: Really?
Penny: Yeah. Why not, I mean, what do I have to lose?
Leonard: Yeah. That’s the spirit.

Leonard and Penny's First Date:

Penny: Hi.
Leonard: Hi.
Penny: come on in.
Leonard: Thank you. You look very nice.
Penny: Thank you. So do you.
Leonard: I made an eight o’clock reservation.
Penny: Okay, great, listen, um, maybe we should talk first.
Leonard: Oh. Okay. But before you say anything, have you ever heard of Schrodinger’s Cat?
Penny: Actually, I’ve heard far too much about Schrodinger’s Cat.
Leonard: Good. (He grabs her and kisses her.)
Penny: Alright, the cat’s alive, let’s go to dinner.

Leonard and Penny's First Breakup:

Penny (opening door): Hi.
Leonard: Yeah, hi, listen, I know what’s been bothering you about us, and I have the answer.
Penny: What are you talking about?
Leonard: First I want to say that it’s not Sheldon’s fault, he tried very hard to keep your secret, if Howard hadn't drugged him he would have taken it to his grave.
Penny: He told you?
Leonard: Yes, but it's okay. Now that we know what the problem is, there’s a simple solution. (Hands her a brochure.)
Penny: Pasadena City College?
Leonard: A place for fun, a place for knowledge. See, this man here’s playing hacky sack, and this girl’s going to be a paralegal.
Penny: Wow, I get it, because Dr. Leonard Hofstadter can’t date a girl without a fancy college degree.
Leonard: Well, it’s really not that fancy, it’s just a city college.
Penny: Right, but I have to have some sort of degree to date you?
Leonard: That doesn't matter to me at all.
Penny: So, it’s fine with you if I’m not smart.
Leonard: Absolutely. (She slams the door in his face.) Okay, this time I know where I went wrong. (Looking up and seeing the camera) Oh, bite me!

Gallery Edit

  • Kissing each other.
  • After their first date.
  • After the shooting range date.
  • A long list of Penny's faults.
  • Discussing the bug reports.
  • First date after getting back together.
  • Playing Halo with the gang. Penny likes blasting things.
  • Don't overthink this! Leonard's dream.
  • Leonard's dream date with Penny.
  • Leonard's dream date with Penny.
  • Penny interrupts Priya and Leonard's date.
  • Penny's first visit to their apartment.
  • Hanging out as friends.
  • Leonard and Penny going out as friends.
  • Penny and Leonard.
  • Penny thinks that Leonard told her to try again with her boyfriend.
  • Penny and Leonard.
  • Penny's dream "shotgun" wedding.
  • Penny's dream wedding to Leonard.
  • Leonard and Penny kiss
  • Leonard accidentally shot himself.
  • Leonard and Penny at the shooting range.
  • Leonard and Penny kiss during the blackout at the apartment.
  • Penny, Leonard and Sheldon.
  • Hanging out with Penny.
  • Penny about to kiss "Poppy".
  • Who proposes during SEX?
  • Gently saying no to the marriage proposal.
  • Sharing a meal at Penny's apartment. Penny is distracted.
  • What is this??
  • Kiss at the end of their first date.
  • Why don't you go out.....with me?
  • Happy Birthday, Leonard.
  • Penny waiting on Leonard.
  • Penny gives Leonard motorcycle lessons.
  • Leonard comforts an upset Penny.
  • First time Penny kisses Leonard.
  • Penny and Leonard at Halloween.
  • Penny is not happy because Kurt is in her apartment.
  • Leonard. You're back!
  • Penny's gift for Leonard's North Pole trip - a blanket with sleeves.
  • Penny looking for advice on Stuart for her date.
  • Penny amused while Leonard explains her to his girlfriend Stephanie.
  • Where's the lime?
  • You rat bastard!
  • Penny's back together with Zack.
  • Penny jealous over Leonard sleeping with Dr. Elizabeth Plimpton.
  • Leonard and Penny - Penny breaking up with him.
  • Leonard reports that Howard's mother is in the hospital.
  • After Priya objects to Penny hanging around, Penny says goodbye to Leonard.
  • Showing Penny some science.
  • Penny got a B- on her paper.
  • Penny and Leonard arguing over him reworking her class paper.
  • Penny accidentally tells Leonard that she loves him.
  • Penny and Leonard in her kitchen.
  • Penny realizing that she told Leonard that she loved him.
  • Leonard happy because Alex hit on him.
  • Penny's smart look.
  • Hot Lemon Kiss!
  • Leonard and Penny in his apartment.
  • Leonard and Penny.
  • Clowning around with Kaley.
  • Can I SLEEP here tonight?
  • Morning cup of coffee.
  • Leonard and Penny.
  • We will get married; someday.
  • Is that my sister?
  • I'll go get my things. Yeah!
  • Leonard thinking of moving in together.
  • Oh my God! Sheldon and Amy!
  • Oh my God! Amy is getting it!
  • Oh my God! Happy for her best friend.
  • Oh my God! Sheldon may be hooking up with Amy!
  • Oh my God! It's going to happen!!!
  • Leonard Hofstadter. Will you be my Valentine?
  • Dinner in Apartment 4B.
  • Raj noticing Penny's enhanced assets.
  • Discussing his overseas job for the summer.
  • Dressed up for Halloween as sexy cop and Albert Einstein.
  • After discussing Penny's insecurity about Alex's approaches.
  • Howard's webcam view of the end of their first date together.
  • Penny finds Leonard's model of the bottled city of Kandor (Superman).
  • Leonard trying to help Penny with her online gaming addiction.
  • Leonard entertaining Penny with physics on their fake date.
  • Penny hasn't paid her electric bill.
  • Sunday morning after Saturday night together.
  • Kissing just before Leonard heads to Texas to retrieve Sheldon.
  • Getting loose before they jump into bed.
  • Leonard and Penny in bed together.
  • After being pushed together by his mother, Leonard ruins the moment over-thinking.
  • Penny timing Leonard and Stephanie's sex.
  • I was thinking of moving in with you.
  • When they first meet, Penny is now naked in his shower.
  • Leonard apologizing that he didn't tell Penny about Alex hitting on him.
  • Penny's final hug before Leonard leaves for three months.
  • Penny as a sexy nerd. "Molecules."
  • Boy, you really are a genius.
  • I have heard far too much about Schrodinger's Cat.
  • Penny about to tell Leonard that she loves him.
  • Leonard confronting Penny about dating David Underhill.
  • Meeting after months
  • Leonard about to surprise Penny.
  • Penny feeling sorry for Leonard.
  • Penny purchased his mother's book about Leonard.
  • Hello, Leonard.
  • Penny has prepared a little something for Leonard.
  • Penny tempting Leonard.
  • Leonard getting ready to play his cello backing up Howard singing to Bernadette.
  • Come here, Penny.
  • Penny getting ready to romance Leonard.
  • Penny showing him her Leonard collection.
  • Penny getting Zack to end their marriage.
  • Hanging out at Leonard's.
  • Lenny kissing.
  • Looking at all things Swiss.
  • Making up over Thanksgiving Day dinner.
  • Penny plans to marry for love.
  • Cheers.
  • Alternate first meeting if they had never met Sheldon.
  • Alternate first meeting, Penny is not impressed.
  • Christmas time together.
  • Penny proposing.
  • Penny proposing.
  • Penny proposing.
  • Discussing Sheldon living with them forever.
  • Leonard and Penny.
  • Leonard consoling Penny after her acting part was cut.
  • Leonard gives Penny an audition possibility.
  • Let's make love in Sheldon's spot.
  • You want to get me out of my panties.
  • Leonard and Penny take Cinnamon to the vet's.
  • Leonard and Penny at the vet's.
  • Leonard and Penny at the vet's.
  • Lakers' tickets!!!!
  • Buying a dining room table.
  • Arguing at Penny's place.
  • Leonard and Penny.
  • Oh Leonard!
  • Let's take your car.
  • Penny has to back to the Cheesecake Factory.
  • Penny's car is broke.
  • Penny's car is broke.
  • Discussing acting with Wil.
  • Leonard and Penny.
  • Leonard and Penny.
  • Halloween frolicking.
  • Looking over expedition photos.
  • After rollerblading.
  • Leonard apologizing musically.
  • We're OK.
  • Alternate first meeting.
  • Leonard's fantasy.
  • Getting ready to move in together.
  • Leonard and Penny.
  • Discussing Penny's belief in psychics.
  • Valentine's Day.
  • Foreplay.
  • Hot lemon kiss.
  • When they first met.
  • Reading through her horrible script.
  • In the laundry room.
  • Leonard and Penny.
  • Tipsy Penny proposing to Leonard.
  • Leonard and Penny.
  • Leonard helps Penny get back together with her ex.
  • Tense moment.
  • Leonard and Penny.
  • I got a B minus.
  • Halloween kiss.
  • Leonard and Penny.
  • Leonard slept with Sheldon's friend.
  • Comforting Penny.
  • Talking about helping with Penny's class work.
  • Talking about Leonard's jealousy.
  • Leonard and his light saber.
  • Penny gives them a toy transporter.
  • We're going to Switzerland.
  • Speeding up their relationship.
  • YES!
  • Leonard and Penny; season 8.
  • Worried about being engaged and having nothing in common.
  • In Penny's apartment.
  • Best fiancé ever!
  • Leonard returning the money that Penny got for her car.
  • Really?
  • Lenny hugging.
  • Up on the roof......
  • You are flirting with doctors?
  • How do I not sound like a bitch?
  • Penny showing off her dress.
  • Leonard and Penny at the prom.
  • Leonard and Penny dancing at the prom.
  • Leonard dancing with the prettiest girl at the prom.
  • Leonard and Penny dancing at the prom.
  • Having their prom picture taken.
  • In the hospital waiting room before Leonard has his surgery.
  • They told Sheldon they were going to the pool.
  • At Amy's Christmas Eve dinner, 2014.
  • Making baskets is more fun than I thought. Don't tell Amy.
  • First night living together, even though it's once a week.
  • Making baskets together.
  • First night living together, even though it's once a week.
  • Talking with Sheldon about Leonard and Penny moving in together.
  • The start of something.
  • Leonard and Penny together in bed.
  • Soft kitty.....
  • Penny after mentioning she used Sheldon's toothbrush.
  • Dinner together.
  • Penny reading Amy's fan fiction while in bed.
  • Shall I keep reading?
  • Reading Amy's fan fiction that includes Sheldon.
  • I even wrote down what you were working on my napkin.
  • You want to see if you fall in love with Sheldon?
  • Eating too much of Mrs. W's food.
  • Leonard complaining about Sheldon.
  • The helicopter comes with a camera.
  • Who reads a magazine that doesn't have a celebrity on the cover?
  • Looking at the article on Leonard's theory.
  • Arguing about money on Wil Wheaton's podcast.
  • Leonard dressing up as a sexy graduate.
  • Their flight to New Jersey has been canceled.
  • Now what do we do?
  • Spoilers: What are you doing tonight? Let's go to Vegas!
  • After the petting zoo attack.
  • Cleaning up dinner.
  • Not in a rush....
  • How can you even say that?
  • Pick a date.
  • Black tie.
  • I want to release butterflies.
  • There's a Denny's that does weddings.
  • Happy about their elopement.
  • Heading to Vegas!
  • What did you do?
  • I guess I can get passed it.
  • Not so happy after Leonard's confession.
  • Giggling since she is getting married.
  • I'm free tonight.
  • "Let's get married" kiss.
  • Celebrating their impending marriage.
  • Thank you, Sheldon.

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