You and your girlfriend are having dinner with your step-mom. You have some big news, your step-mom mentions how she received your invitation to your engagement party what a pleasent surprise. She congratulates both of you, pretending to be overjoyed. Your step-mom gritting her teeth now, comments how her step-son didn't even mention it to her beforehand it really so unexpected as you've not even been dating that long to jump in to such a serious commitment. You both claim to be in love, head over heels and your step-mom grins as she continues to sip from her glass. The GF confesses it was all her idea and that your step-son was happy to propose, now you both announce you want to move in together and your step-mom is visibly unhappy about this, how she will really miss having her step-son around the house but the GF reassures her she'll take good care of him for her and they can always come visit. The step-mom takes the final sip, they've got something to celebrate but realises that there is no more beverages left after she finished off the last bottle and asks the GF would she be so kind to go and get another from the shop while she catches up with her step-son. Step-Mom smiling tells her to take her time. Once the GF is out of sight the step-mom quickly scolds the step-son, showing her true feelings. She angrily confronts her step-son, when were you going to tell me about this? Did you even consider asking for your step-mothers blessing before getting down on one knee to some girl you barely even know. She put you up to this didn't she, she's sinking her claws into you and trying to steal you away from me. First marraige and now house hunting don't you she what's shes doing step-son she's trying to push you away from me the one person who cares most about you step-mommy. Step-Mom isn't going to let this happen, she tells her step-son to call off this silly arrangement and stay right her with step-mommy. Imagine abandoning your step-mother, leaving me her all by myself alone. That conniving bitch isn't taking my only step-son away not if I have anything to do with it. Step-Mommy gets up from her seat at the table, teasing her step-son with her cleavage and she knows how to make her step-son stay, seducing her step-son into cheating with her huge tits. That girl will never be good enough for my step-son, you'd be miserable being away from step-mommy. Now step-mommy is on her knees for you and starts blowing her step-son's cock. Step-Mommy is taking what's hers and there's no way you will leave me now not with my hands wrapped around her hard throbbing cock, my lips on the end of your cock step-son I know I do it better than her it feels better with step-mommy. Step-Mommy knows how to keep you here with her, where you belong. She lays back on the dining table legs spread as you slide inside inside, there's no going back now you've cheated and step-mommy wants to ruin your engagement, wreck your relationship, replace your GF. She's not your fiance because the engagement won't be going ahead not after step-mommy is begging you to breed her, to impregate her to fill her up with your seed. When your GF finds out your a step-mommys boy she won't want to marry you, when she discovers you've knocked step-mommy up.