The event of having sex with one partner right after another.

Felatio performed by two people upon one other person simultaneously.

masturbating two times or more consecutively. as in, without loss of erection.

Two dicks in the pink or the stink

Getting oral by two women at the same time.

A term for a two-headed dildo. These are generally used for stimulation between two homosexual female partners, although they can be used in a heterosexual context with more than one woman involved, or used on a man for heterosexual or homosexual sex.

When you fuck two different people on seperate occasions during the same day.