While watching tv at home on a split screen or picture in picture, or at a bar with multiple tvs and more than one team scores at once.

When you eat dirt for the first time and leave your family to build a shack in the woods

when someone gets WAYYYYY too overexcited for a goal they have scored on fifa and they end up spunking on their xbox controller so that the buttons get stuck

A competition between friends to see who can have the most orgasms in public.
For guys it could be getting a blow job and the showing his friends either some of her hair or the color of her lipstick. For gals it's as simple as pointing out the best looking guy in the place and then describing how you could leave said lipstick.