How do I go about having a ? I want to have it with my girlfriend and her mom?

My girlfriend is hot but her mom well lets just say bom chica wah wow ... she is haaaaaaaaaaaauuuuutttt like spicy curry sauce. She is a young M�lf only in her late 30s and i would loved to tap it. Her husband is always away as well over the week and yesterday I saw her putting sun cream on her daughter (my gf) very y... I thought I should just go over there and initiate like they do in p�rn but i don't it would have worked