Bucharest is nothing like other European stag destinations. No equivalent to FKKs, Showparks, Laufhauss, Privhaus, etc. There are plenty of massage places, some of which offer happy endings. I recommend that you do an advanced search on here for previous reports.
The city itself is a dump, extremely cold in winter and a parched oven in summer, with precious little of interest tourist-wise. Most of what was worth seeing was bulldozed during the Ceaușescu era. It has even less charm than city-centre Birmingham.