Bah. If you want photos of people having sex in bath-tubs, just spend £200 on booze and tell everyone you know there's a party at your house.
That's what me and some of my pals did. Even with like only 15 people there, there was still: sex in the bathroom, someone being sick on some girl, me being sick all over the back garden, five drunk people trying to jump a fence in a single leap, many death threats (mostly from me to various retards), drugs, me smoking out back for 2 hours talking to these two hot girls, me falling down the stairs from laughing at my friend drinking booze and taking a **** while two people had sex in the bath next-to him, and a whole ****load of miscellaneous fondling and groping.
Seriously, all you need for a good time is booze, a house and some girls you've never met before.