You really shouldn't have come home.. your step-mommy even gave you money to stay out until 1AM and yet here you are, curious as to why she bribes you to stay out on the same night every month. You walk in on her in her bedroom and when she see's you there she becomes frantic.. BEGGING you to leave for some reason. This is fucking stupid, what could possibly be so awful that you have to go so urgently.. is she having a man over or something? Wait.. somethings off with her.. she's talking nonsense.. something that she can't explain.. that you wouldn't understand? You now have 10 seconds to leave before its too late? What the hell.. no way. You stand your ground and demand answers and thats when she changes.. her demeanour.. her face.. even her voice.. your step-mommy has become insatiable with lust to swallow you whole.. she was born cursed and now she has a victim.. her own step-son! She did tell you to go.. she did beg you to leave.. but you didn't listen.. and now there is no escape. Something about her eyes.. her wicked smile draws you in.. and thats when she becomes sexual towards you.. teasing you with her cleavage and straddling you, grinding her pussy against your cock (which is strangely hard!) She tries to entice you into her mouth, rubbing against your crotch harder and heavier, reassuring you that it'll all be ok if you just cum.. in your post orgasm state you won't mind so much your step-mommy eating you. She draws you close to her open mouth.. closer and closer.. until you are consumed by her.. your whole body.. swallowed.. but she assures you that you'll come out the other end.. eventually! After swallowing you, her belly grows huge and round full of her step-son. Hey eyes roll with pleasure as she groans and moans you through her digestive system. She then lays down, tired out from swallowing you.. and thats when she snaps out of it.. the curse lifted again until next month.. she looks down at her giant stomach and pokes it.. "step-son? what have I done to you? I'm so sorry!"