Firstly we would like to make friends. Get to know you. Be able to hang out more than in a bedroom. 

But. Once in the bedroom we're fair game. We find it very hot being able to be watch each other please someone else. It strengthens our bond knowing that we can pursuit our animalistic impluses, find new ways to experience pleasure, and add new excitement to our sex lives without breaking each other's trust. 

We like to video each other sometimes, find unique ways to incorporate everyone into a pleasurable sex position, and for a time just be downright dirty sex toys.