A long line of gay guys having butt sex

when a girl gathers a bunch of guys and has sex with them one after another

When you begin by gently fisting your partner, imitating the connecting road of a steam train(link from the engine to the wheels). Slowly picking up speed much like a train itself. Once you have reached maximum speed you can manage, you yell CHOO CHOO, spouting two glorious arks of semen vertically in the air to mimic the puff of steam.

When a dude fucks a girl, while she bangs another girl with a strap on.....

the center chick could also be swapped for a tranny.

When two homosexuals choose to play the rodent game (sticking a rodent into one's bum) and they put a tube between the two, the partner with the rodent inside him farts in order to try and get the rodent to run into his partner's bum.