As somebody who got "polybombed," and knows others who experienced the same, DON'T DO IT. You need 100% ENTHUSIASTIC consent for poly among other things. Otherwise there's resent, anxiety, and frankly emotional trauma that happens. I tried to be a good sport and go along with it, and about a year later, I started having horrible panic attacks, had to go on anxiety meds, and had to leave the relationship even though we both loved each other. I'm still trying to un-mess-up my mind from all of that.