In Final Fantasy XV, you're on a road trip with your buddies. You pitch a tent, sit around a campfire and get close.
You know, butt slaps, wrestling and fingers up the bum. That kind of thing.
For example, one of the members of your party, the blonde-hair dude named Prompto, keeps getting his tush smacked by beefcake Gladiolus.
During a side quest, Prompto and Gladiolus are wrestling in a tent.
Just wrestling. That's all.
Ignis likes to wrestle in the tent too.
And here, as noted on 2ch, Prompto gets Gladiolus back with a kancho. In Japanese, the juvenile prank kancho (カンチョー) refers to the word for "enema" (浣腸 or kancho). What you do is take your index fingers, put them together, and then thrust them into somebody's butt. Like so:
Bam, KANCHO. This is the best video game kancho animation I've ever seen.