Why is sperm white and piss yellow?
So you know if you're cumming or going!
Who's the world's greatest athlete?
The guy who finishes first and third in a masturbation contest.
Why are men like cars?
Because they always pull out before they check to see if anyone else is coming.
One day, a little boy wrote to Santa Claus, "Please send me a sister."
Santa Claus wrote him back, "Ok, send me your mother."