Sollux has two wriggling gifts for Karkat. The first is a traditional Wriggling Day present, complete with wrapping and bow. The second one wriggles in an entirely different manner.

Incubus - a male demon who feeds off of sexual intercourse with humans. Kaminari hasn’t been able to get the word out of his head all day. Not since he learned it at 11:28 am in his mythology and demonology class, anyway. To him, it sounds a whole lot like an opportunity. Kaminari Denki is hella tired of being a virgin, so he summons a demon to help him out. But maybe he should be more careful with what he wishes for - he's going to be absolutely ruined for humans after this.