- What were you doing with Priya?
- I believe COITUS.
The Big Bang Theory Season 4, Episode 6
Technically,
that would be COITUS interruptus.
The Big Bang Theory Season 1, Episode 1
...I want to have COITUS with Amy.
The Big Bang Theory Season 8, Episode 1
COITUS portion
of your birthday festivities.
The Big Bang Theory Season 10, Episode 11
That woman not only had
vigorous COITUS with Bert
The Big Bang Theory Season 10, Episode 16