I have recently bought two adult domains: lesbiansfor.us and gayfor.us Can you do a free appraisal? Thanks.
There are still lot many great domains out there to buy. so dont go on purchasing domains like the internet is exhausted ! Do better research before buying.
Sorry to disappoint you, but IMHO it's hard to sell them even at reg fee (had to learn my own lessons with adult domains). Put e.g. a wordpress theme on it and promote some adult sites. Make a few bucks and try to sell the whole site again - but I wouldn't put any money in it.