Quoting Mrs.Josh Ramsay:" Hey.. so heres a question if your starting up FWB with someone sometimes you set ground rules, is one ... [snip!] ... is one of the rules usually you can't sleep with anyone else?? Ive never had this rule but kinda agree with it.. thoughts"
I would think.. not that you CAN'T... but establish that you only want to sleep with one person... and if you do.. t be honest and let the other person know so you can stop if that's what you want.
like one guy said to me.. "you can sleep with who you want, but I don't want to stick my dick where another dick has just been.. so just let me know"