Any more information on the Google listing / former website ... can see that it was "Adult" (sales) in nature, etc. but perhaps check: www.archive.org ... etc. and see if you can get more specifics on what it was, revenue figures, etc. There may be a chance that the former owner's might want it back?!? :talk:
If grabbing it for development, might bring you some extra $xx. Just plain selling domain, won't go for more than $xx. Don't really like the word "sex + s".