That the hymen covers all of the vagina and the first time you have sex/use a tampon/ insert something, it'll break and bleed, and is an indicator of your virginity.
*puts on Sex Educator hat*
The hymen is a stretchy membrane, and it's shaped like a flap, stretched a little way across the vagina. When women are aroused and are naturally lubricated (som... (more)
Well I don't know if it's the longest for sure, but erectile dysfunction researcher, Giles Brindley, injected various drugs into his penis and sustained a 44 hour long erection.
In a 1986 paper, Brindley injected 17 different drugs into his own penis and measured the effects. The most successful dose resulted in an erection lasting 44 hours, well beyond t... (more)
I have been on both the buying and selling end both times as a couple. My wife "Alice" and I tried the swinger thing for a year and we listed ourselves on this site for swingers to meet oter swingers. This guy contacted me to ask if he could have sex with Alice. I said sorry no because we only were interested in meeting with other couples, and we were jus... (more)