Well made it back to Frankfurt and plan to enjoy the end of the week. Standby would be Oase for another visit but was thinking about something different.  I was wondering if anyone knew of or had experience with an FKK club having BDSM of any type in the club?

No experience with it and unless you happen to bump into a girl that just happened to work in that sector (I've known a few), I wouldn't expect too much. Sharks does have an "SM room" though, and I think Oase as well.

Aside from the SM, any clubs in the Heidelberg area I could consider? I will be there Friday night and Oase is a bit of a trip form there.