Im dating a cop and her sister?

im dating a police woman she is the perfect gurl fo me she thick,got hips,got cl and a backside.but three weeks ago me an her lil sister got really wasted and did something we should have. so everthing between us wuz cool fo the frist 2 weeks but then her boyfriend left her for nurse, then she gave me a call one day saying she was moving and she need some help.but when i got there she had worn a apple bottom jean that really sho of what her and my girlfriend got from there mom plus a whit tantop.and one thing went to anther and we did it again but this time we lasted 2 in half hours longer.i don't know what to do i love my gurl but me and her sister love each other and we also work together.she my boss and her sister has hangcoffys and a badge. help give me answers anyone