
I'm a good girl.
I went to Catholic school.
The Big Bang Theory Season 4, Episode 22

...and I quote, she'd like to see
"the little Catholic girl first."
The Big Bang Theory Season 4, Episode 23

I'm having sex with a Catholic
schoolgirl tonight.
The Big Bang Theory Season 7, Episode 21

but I don't think dressing up
like a Catholic schoolgirl
The Big Bang Theory Season 7, Episode 21