Don't know if this was mentioned, but KOTOR had a "brothel" in it, more or less.
In Daviks place, when the mandalorin sneaks you in, there is a slave quarters where they take you "in the back" if you want a "massage". They also say s*** like "you have a great appetite for my services" and other suggestive stuff. So, while they don't come out and say it, they do everything but.
The funny thing about that game is, if you do the romance story line, they actually fade the screen to black when the kiss happens.