jerk buddy
Jerk buddy, or jerk buddies, consist of two straight (and/or not straight) males masturbating together in one room until the point of ejaculation.
Justin Bieber: "Hey Austin, want to be my jerk buddy?"
Austin Mahone: "Sure, I'd love to rub one out with you, man."
Austin Mahone: "Sure, I'd love to rub one out with you, man."