What do you mean better in bed? You either do it or you don't.
5 seconds sound clip from the Fast Times at Ridgemont High movie soundboard.
You can hear this line at 00:12:30 in the Blu-ray version of the movie.
Quote context
[...]
- That girl looks just like Pat Benatar.
- I know. Wait. There are three girls at Ridgemont who have cultivated the Pat Benatar look.
- Chanel Semlar... Mary Ann Zlotnick in the red tights.
- Do you think guys find that more attractive?
- Stacy, please, give me a break! You are so much prettier than them!
- Yeah, I know, but do you think they'd be better in bed?
- What do you mean better in bed? You either do it or you don't.
- No. There are like variables that I might not be good at.
- Like, you know, giving blow jobs.
- You've never given a blow job? Never? There's nothing to it. It's so easy.
[...]