...I want to have COITUS with Amy.
The Big Bang Theory Season 8, Episode 1
And then after dinner,
we will have birthday COITUS.
The Big Bang Theory Season 11, Episode 11
Oh, okay. As long as it doesn't end
with us having COITUS with him, I'm in.
The Big Bang Theory Season 9, Episode 13
the obvious answer is,
they engaged in COITUS.
The Big Bang Theory Season 5, Episode 1
What do the two of you
talk about after the COITUS?
The Big Bang Theory Season 3, Episode 17