Gangbangs are usually composed of three or more guys who are solely focused on destroying the ass of one single guy in the group. It's going to be a fiesta of penises if that happens.
If having sex with just one guy doesn't cut it out for you anymore, then why not take it up a notch and invite a few more friends over? The invite is certainly not for dinner, but you'll all still be eating something good - each other's long, hard, throbbing dicks.
Dicks here, there, everywhere! That's what you'll mostly see when you participate in a gangbang.