“Ma-master,” the little 10-year-old boy, who a few moments ago had been Ben’s 16-year-old brother, groans, “y-you are… t-to big… it… it hurts!”
Ben smirks, not caring as he continues to push in deeper into his former big brother, “no, Jeff,” he says, “you actually love the size of my cock. It feels so good inside of you, how it fills your ass out”.
Jeff moans as suddenly the pain is replaced by an amazing pleasurable feeling, “ye-yes… master,” he says, “I… I love it!”
Ben grins, “that’s the spirit,” he says, “now, I’m going to start fucking you. While I do, I want you to forget your name. You were never called “Jeff”, your name has always been “Jessie”, since you are such a girly boy. Hehe… you love being treated as a girl, ain’t that right… Jessie,” with that Ben starts to slowly thrust in and out of his brother.
“Yes master,” Jeff, now Jessie, says, “am a… girly… boy. M-my name… my name has… always been… “Jessie”…!”
Ben grins as he thrusts in and out of Jessie, his plan seeming to work, “very… good,” he says, “now… f-fuck… so good! Now… for one… more… correction,” Ben smirks evilly as he lies a hand over Jessie’s tiny erection, the 12-year-old’s hand starting to glow red.
Jessie suddenly feels his tiny erection become warm and seeming to shrink, at the same time he feels something in his tummy growing, causing it to grumble as his insides are pushed out of the way. “Master… my… my pee-pee feels… weird,” he moans, even talking like the little child he had become.
Ben chuckles, “what “pee-pee”? You never had… a pee-pee… silly Jessie,” he says, his grin widening feeling the tiny cock and sack shrinking back into his brother’s body, “you actually were born with the wrong genitals! Instead… of a cock and sack, like me… you were born… with a functional… pussy! You… you are a cunt-boy! Able to become… pregnant!”
“Pre-Pregnant,” Jessie asks.
“Yes, dear Jessie,” Ben whisper, still fucking his brother, “the thought of having babies in your…. Tummy… being a mommy… excites you! That is what… you are… made for! You were born to be f-fucked and… have babies!”
“Me… have… ba-babies… of ma-master,” the little boy squeaks.
Ben grins, “hehe… if you wish,” he says, “I’d be happy to… make you pregnant!”
“Yes… master,” Jessie says, “pl-please… want b-babies!!”
“Very well,” Ben says, pulling out of Jessie’s butt with a plop sound and quickly pushing back in, but this time into Jessie’s newly formed pussy and continues to fuck the now cunt-boy. Ben grins wide, “oh Jessie… I will make sure… to fill you… up with… my baby… making seed! You’ll… look so c-cute with a big… belly FULL of MY children! Hehe… I can’t WAIT to be a… daddy!”