Amy gets sick and Sheldon takes care of her and that means putting Vaporub on her chest. She likes it!
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Amy dresses up in a Star Trek outfit and plays doctor. Sheldon says he doesn't like it, but tells her to keep at it.
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After a night dancing, Amy kisses Sheldon. It's their first kiss!
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Sheldon and Amy do a scientific evaluation when she gets turned on by Zach. They determine that she's horny. He wants her to go out with Zach, but instead she tries a hand-holding experiment with Sheldon.
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We're at the vet for this scene from The Big Bang Theory. It's from the episode "The Locomotive Manipulation."
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On Valentine's Day, Sheldon kisses Amy on a vintage train ride after a disastrous dinner.
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James Earl Jones totally cracked us up on The Big Bang Theory. He guests here on Season 7.
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When he's closed out of Comic Con, Sheldon decides to create his own convention on The Big Bang Theory.
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TBBT Quotes

Penny: Here's a question-- as an alien pretending to be human, are you planning to engage in any post-prom mating rituals with Amy?
Sheldon: There are post-prom mating rituals?
Penny: Not always. Unless your date drives a van with an air mattress, then always.
Sheldon: Well, if it's part of the prom experience, then I'm open to it.
Penny: You're kidding.
Sheldon: I may be an alien, but I have urges.If Amy wants to copulate by firing her eggs into space, well, then, I will happily catch them with the reproductive sac on my upper flermin. I'm not the best at reading facial cues, but I can see that you're a little turned on.

Raj: Well, to paraphrase Shakespeare: It's better to have loved and lost than to stay home every night and download increasingly shameful pornography.
Penny: Oh... you poor baby.
Raj: What's wrong with me, Penny?
Penny: Nothing, nothing. You know, if we weren't friends - and you hadn't brought up that creepy pornography story - I'd be on you like the speed of light squared on matter to make energy.
Raj: Hey, you totally got that right. E = MC squared.
Penny: I listen. I have no idea what it means, but I listen.