Why can't you hear rabbits making love? Because they have cotton balls.
A professor was giving a lecture on involuntary muscular contractions to his first year medical students. Realizing that this was not the most riveting subject, he decided to lighten the mood. He pointed to a young woman in the front row and asked, "Do you know what your asshole is doing while you're having an orgasm?" She replied, "He's probably playing golf with his friends."
One weekend, a husband is in the bathroom shaving when the local kid Bubba he hired to mow his lawn, comes in to pee. The husband slyly looks over and is shocked at how immensely endowed Bubba is. He can't help himself, and asks Bubba what his secret is. "Well," says Bubba, "every night before I climb into bed with a girl, I whack my penis on the bedpost three times. It works, and it sure impresses the girls!" The husband was excited at this easy suggestion and decided to try it that very night. So before climbing into bed with his wife, he took out his penis and whacked it three times on the bedpost. His wife, half-asleep, said, "Bubba? Is that you?"
Did you hear about the guy who died of a Viagra overdose? They couldn't close his casket.
A group of fathers are sitting around talking about their teenage daughters. One dad says, " I think my 16 year old is smoking; I found a empty cigarette pack under her bed." All the other fathers say in unison, "Oh no!" Then a second dad says, "That's nothing. I found an empty liquor bottle under my 16 year old's bed." All the other fathers say in unison, "Oh dear!" Then a third dad says, "Mine's worse than both of those combined: I went into my 16 year old daughter's room and found a used condom." All the other fathers say in unison, "Jesus Christ!" The third father replies "Yeah, I didn't know she had a dick!"