Make an immaculately detailed story set in Sweden about a guy and his boyfriend taking a bath in a tub. The boyfriend farts in the water, unintentionally turning on the guy. the guy mentally fantasizes to himself a vivid scenario (Describe the scenario) of his boyfriend wading into a river and accidentally letting off a fart so foul it kills fish, then eating one. The guy rubbing it out to climax in the bath as he imagines it