i had a relationship with an ex-boss(ended badly..like the end of the movie jungle fever)and i got blown a few times by my ex-boss a few years later after she heard about my "big reputation".
i never had sex at the work place..but in my old office in the basement were the records were kept.people would have sex in my office all the time after hours on my desk!! and i never got any type of action in there at all.