I find I avoid certain words when picking out a new Adult domain name. I usually skip past domains beginning with:
1. dirty (I don't view sex as something "dirty")
2. naughty (just doesn't fit Gay -- kinda ok for Str8)
3. nasty
4. my (ex: my cocksucking boyfriends)

Do you have ones you avoid, or ones you think really rock for a domain title?