Las Vegas: locations?

Any one have any favorite spot in Vegas to get down and dirty at?
Id like to think that city would be filled with casual sex... but where?

Ive only heard bad things about Red Rooster and the Green Door,
And I only know of one glory hole/ porn theater, south of Fremont street, AIM, I think its called.

Im thinking of a trip in a few months, and Id like to have some ideas of where to go for a nasty time, not including strip clubs of course.

If its something that might be best left unposted, feel free to send me a PM as well.

Thanks for any replies!