[luckyjimm]

There's an amazingly hot sex scene in The Acid House, based on Irvine Welsh story. A guy gets turned into a fly, flies into the house of his ex-girlfriend who is having super-hot sex with her new boyfriend. The guy/fly takes a crap in their takeaway food, which they return to eating when they finish screwing. So they then get food poisoning and projectile vomit everywhere. Anyways, the sex is super-hot.