My BF wants permission to sleep with my sister

hunny like 80 to 90 percent of men are just assholes ur best bet is to just go lesbo. No matter how good u look or treat ur man they always judge u bc they always judge woman unjustly nonstop and they always will cheat. Btw bud i look way to good to even be with my man and have treated him like a king and brought way more income into the house an he still cheats and he is butt ugly so im leavin him. Men think its a woman job to do everything and keep the relationship going and fun that they can be ugly and never take.care or themselves and u gotta be sexy and hot on top of doing everything and always be ever so.happy and smile. And then they cheat and ignore u anyways