Oh, the possabilities... as far a decorations are concerned..

[Z0mBieP00Nani]

Maybe a fountain with a bunch of dudes "hosing" a naked chick down, or a statue of a topless or naked chick squeezing her boobs with streams of "milk" coming out of the nipples. Might make some nice decorations in a high end brothel mod or something.

 

http://www.nexusmods.com/fallout4/images/72915/?

[vinfamy]

The brothel building part of FP Prostitution will use the settlement building system, so you can spend as much time decorating your brothel with vanilla/ modded assets as your heart desires.