Totally staged. This is not a real party at all. Most girls would be appalled by seeing anal sex live in front of them. And who goes to a party and ends up publically taking it up the arse? Do you carry lube in your handbag? Phoney, just porn, not party.
Does it matter if its staged. Wheres your imagination, Have you never heard of spit? You want it up the arse, dear. Hang on I'll just nip out to the chemist. What a plonker!