Allan has come over to his girlfriend's house for the first time, and is shocked to see her bedroom - it's an entirely adult-sized nursery, complete with crib and diaper changing table! He remarks on the strange decor, to her brief chagrin. She lures him into laying down and taking his clothes off, but little does he know what Ella has planned. She brings out her strap-on and gets to work fastening the belts around the disposable diaper she's wearing. With slick, gloved fingers, Ella warms him up by slowly pushing into his ass. He whimpers at the feeling, which only encourages Ella to speed up. Once he's ready, she thrusts the length of her cock deep into his ass. "There's only one way to make you my little infantilized girl..." The two moan as Ella fucks what was once her boyfriend, now her little sissy. Next it's time for a fresh diaper change. Ella reaches for the thick, pink diaper she had picked for her new sissy to wear. She fluffs, pulls, and tapes the diaper until it fits perfectly, then completes the new look with a soft, pink little doll dress overtop. Allab seems to be fitting into her new role quite nicely, as the two embrace in a hug.