Ahhhhhhhhhhhhhh?!?!? Std?

Okay so it all started with this one girl named Mandy. She and her boyfriend Joe had oral sex (both ways). Then Mandy had sex with her next bf Robby,then banged her nexted 3 boyfriends. Oned named Jeffery who is now dating one of Joes ex's Katie...Joe and Katie had oral sex. Then Joe is now dating my friend Kourtney. & he fingered her & she have him a handjob..could Kourtney have an std cuz Joe,Mandy,Robby,& Katie all had that going on? & could i cuz i kissed & dated Robby??????? Sorry im confusing, we got lots of whores! ://