Males grab their cock and stroke.
Females finger themselves, or use a dildo, or vibrator, or a hot dog...
We all do it, don't deny it.
Jane would rather masturbate, because she can't risk getting a bun in her oven. Although, she's had her eye on Bob for a while...
2.) The reason why people buy playboys.
3.) The reason why old people are having more heart attacks.
4.) The reason why birth-rate decreased by 60% in the last 20 years.
5.) What 30% of the world population is doing now.
Jane: Ew! You mean you touch yourself?
Jane:...is it good?