Giantess step-momma's new cuck toy with alternate ending

THIS IS A CUSTOM VIDEO My Step-son who shrunk when he was in college is jealous of his giant Step-father who gets to have sex with the one woman who drives him wild, me his own Step-mother. He confesses that he is in love with me and would do anything to have him all to himself. After the initial shock and amusement of the thought of my tiny thumbnail sized Step-son being my lover I begin to feel sorry for him and agree to allow him to stay in the room while I change, shower, even us the bathroom if it gets his little tiny pebble sized rocks off. After all he is doomed to never have sex or have much of a life at all now that he is shrunk. My husband is on his way home from work and I decide to give my tiny boy a thrill by letting him hide in my panty drawer and listen to me have sex with his Step-father. It gets him so excited I can tell! After sex with my husband I open the drawer to see his itty bitty tiny boy cum spot on one of my pairs of panties. I ask him if he would would like t