SCENE 1:
You've known your step-MOM's best friend for as long as you can remember, and she's like a step-AUNT to you. Mrs. Wood (aka "Step-Aunt Olive) has heard you've been having some wardrobe issues. Your penis has gotten SO BIG that you can no longer find underwear that fits!
While step-MOM is in the kitchen prepping dinner, Mrs. Wood hands you a gift. She's special-ordered a pair of underwear for big boys like you, and hopes they'll be a perfect fit. Hearing her casually talk about your big penis, you can't help but get an erection. She marvels at its size, but she's concerned about how uncomfortable you must be in your tight pants. She suggests you take them off to provide some relief. Since you're not wearing underwear, you're concerned about exposing yourself, but she doesn't mind. In fact, she's curious to learn just what you look like down there. You pull off your pants, but showing yourself off gets you even harder. It's clear you're going to need help if you want your erection to go down before your step-MOM comes back into the room, and Mrs. Wood is happy to be of service. She worships and sucks your huge cock, and you finish JUST in time. You pull your pants on seconds before step-MOM announces dinner is served, phew!
SCENE 2:
After your step-MOM goes to bed, Mrs. Wood sneaks back into the house to spend the night with you. She wakes you up with a morning blowjob, but taking you in her mouth makes her desperately crave more. She climbs on top of you and rides your enormous penis until you both cum, stifling her moans as you stretch her open. She sneaks out just as the sun comes up, but you know she'll soon be back for more.
Originally a custom vid, but no names are used.