Group masturbation
From Voyeurweb's Wiki about Sex
Group masturbation is a type of masturbation where 2 or more persons of same or different gender sit in a room and masturbate at the same time without touching anyone else but their own body. Sometimes this is combined with a contest to see who can ejaculate first or the most. Often the men compare penises before and after a circle jerk session. Other types of masturbation are hidden masturbation, couple masturbation and public masturbation.
