You're paying?
Have you been selling your SPERM again?
The Big Bang Theory Season 2, Episode 22
if someone wanted to use Sheldon
as their SPERM donor?
The Big Bang Theory Season 12, Episode 12
Um, is this the high-IQ SPERM bank?
The Big Bang Theory Season 1, Episode 1
Oh, maybe I could sell my blood and SPERM!
The Big Bang Theory Season 10, Episode 17
I know....SPERM.
The Big Bang Theory Season 12, Episode 12