Your GF has wanted to get pregnant for such a long time, and even though you tried for a long time it just never happens so when your GF suggests using her own step-mom as a surrogate you agree to make her happy. But when she asks you to fuck her step-mom and get her pregnant the natural way you had no idea this was going to lead to an affair with your step-mother-in-law, your GF thinking it was just a one-time thing has no idea that you two have continued fucking nearly non-stop, and today is no different. Thinking you both have plenty of time for a fun time together, again talking about how you could convince your GF to let you fuck her and her step-mom at the same time, after you explode inside her… your GF surprises you and comes home early!!!!! ????