When a stepmom or any mom decides to have a sexual affair with a stepson or real son, she must contend with his sexual desire at the most inopportune times. She certainly doesn’t want him to be frustrated or feeling like he is neglected after giving him the privilege of fucking her because he could be vindictive enough to brag about their ince*stuous sexual activities. So stepmom or mom has to placate her son’s lust with a blow job or vaginal intercourse, and in most cases when she is tired, it’s much easier to just give him pussy. Of course, a lot depends on the possibility that she is in her fertile cycle and the prospect that his sperm may create an addition to the family when she least expects it. Unexpected pregnancies have happened to many moms in the past and it will continue as long as moms and sons exist.