Step-Mom Needs To Fuck Me Before Date Night With Dad

My step-dad's smoking-hot wife Crystal has those fresh fake tits he paid for after meeting her on some Russian mail-order site. I'm coming out of the gym, ready to shower, when I walk in on her naked in the bathroom. She waves me in like it's nothing. Apparently her and my step-dad are on the rocks and she's horny enough to be direct. Crystal says he can't get it up for her, so she wants me to fuck her right now before their date. She swears she's not leaving him, she just needs one thick cock that'll actually satisfy her, and she thinks mine will do the job. Family first, right?