Amy Farrah Fowler, played by Mayim Bialik, is the potential love interest for Sheldon on The Big Bang Theory.  Much like Sheldon, she is incredibly smart and socially awkward.  Also much like Sheldon, she's not very sexual and not really interested in coitus.  Perfect for him really.

Amy Farrah Fowler Quotes

Amy: Have you considered massage?
Sheldon: I'd like to respond to that sarcastically: Yes, I relish the thought of a stranger covering my body with oil and rubbing it.
Amy: I was proposing you massage your muscles with your OWN hands.
Sheldon: (aback) Still sounds like a lot of unnecessary touching...

Amy: I have potential for sexual arousal.
Sheldon: A cross we all must bear.

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.