YTHY-006 - Taking in two stranded busty girls... a night of wild revenge

I happened to come across two girls who ran away from home after a fight with their boyfriends. After listening to their troubles over drinks until the first train, they had nowhere to go, so they naturally ended up at my place. As a 'thank you' for staying up with them, they suggest I do whatever I want to get back at their exes. It would be rude not to take the offer, right?