The type of sex cheaters have. It's called sabotage sex because the whole time you are sabotaging the relationship you're already in by messing around with others.
Guy 1: Dude! I totally got laid by 4 different girls after I came home from the bar last night!
Guy 2: But aren't you already dating someone?
Guy 1: Well yeah...but who cares! 4 girls one night!
Guy 2: That's a bad case of sabotage sex you've got there buddy...