Tweek is traveling alone in the Lost Forest before he's joined by Jimmy the Bard, a charming fellow who talks to him about how it's dangerous to be alone here, warning him about bandits, demons, fairies and whatnot. They walk together and hit it off until they're ambushed by a thief who calls himself Feldspar. Feldspar takes Jimmy hostage with a blade and threatens to off him right there unless Tweek complies and pays him, to which Tweek preaches stuff about peace and cooperation and all that. Craig talks about how he's just trying to get by, it's not his fault that Elf ears are very valuable in the market, and that everyone has to tend for themselves. If Tweek's preaching about love and trust and whatnot and cares so much about this stranger he just met then he can suck Jimmy off right there at that moment right?

Unbeknownst to Tweek, Craig and Jimmy are buddies who team up to prey on, rob or scam people who wander alone in the forest.

Unbeknownst to THEM though Tweek is actually a vengeful imp who doesn't like being fooled. Why's there so much hate in the world huh!! So he's either cursed their dicks or let them steal a cursed artifact he was holding onto, that turns their existing sexual tension into reality- he edges them or makes them edge each other for a long while, to spread love and trust! Up to you if Tweek is somehow there with them or not

tldr Scam artists Jimmy & Craig piss off a demon and find out