When a male inserts his penis into a girls ass, while massaging her breasts with his right hand,and fingering her with his left hand all at the same time.
When a person doesn’t want to go to the toilet so they shit in another’s asshole. That person then goes to the toilet and does the shit for the original person.
The act of sneaking into the orca inclosure at sea world and beating your meat while also pleasuring the orcas until both you and the orca sporadically orgasm at the same time causing the Rapture setting of the plot for This is The End by Seth Rogen.