Quote Originally Posted by STDzRus
*sigh*

Anal sex leads to AIDs.

Use a condom and do not cum in his/her asshole.

When sperm hits the lining of the rectum it can lead to HIV and AID's.

*toddles off for evidence*
It's not only that, but the walls of your "anus" (I put it in quotes because it's a funny word) crack easier and allow the passage of sperm.