Frot

Frot is a slang term derived from frottage (ult. from the French verb frotter, "to rub") describing a form of non-penetrative male/male sex that usually but not always involves direct penis-to-penis contact.

The term "frot" was originally popularized by gay male activists who disparaged the practice of anal sex. The term has since evolved to encompass a variety of preferences for the act, which may or may not imply particular attitudes towards other sexual activities.

Owing to its non-penetrative character, frot has the safe sex advantage of minimizing the transmission risk for HIV/AIDS, and may also help to lower the risk of certain other sexually transmitted infections, without the inconvenience of purchasing condoms and condom-safe lubricants.