A post shared by Joel Kim Booster (@ihatejoelkim)It doesn’t take a lot of sleuthing to know that Joel Kim Booster is in an open relationship. The Fire Island star has talked about his affinity for threesomes in the pages of the New York Post (Page Six to be exact) and on Watch What Happens Live! with Andy Cohen. Then there’s his Twitter feed, which is where Booster called out a recent hookup partner who asked one question too many.