After Jeff swallowed the half of his sister that was now a bean he felt some changes in his body, specifically in his lower body, his height increased from 5'5 to 5'9, he thought that it was the only change before his ass started to expand and get bigger like his mother/sister.
Jessica took a moment to look at Jeff but she didn't look very happy as she scolded her son/brother in a serious tone.
"Jeff, actually I changed my opinion so you're going to change how you looked before".
"can you make something right once?" He replied.
"Listen Jeff, I'm your mother and you're going to obey my orders okay? I love you so I worry about your appearance and I wanted to change you, but you didn't look like I expected so it's better your original body"
Jeff felt his body weird again, like he was shaking but only in his lower body again, his ass regressed to its original size and his height decreased to his old 5'5. Then Jessica was pointing at him again but this time he felt like spitting something, it was her sister in her half bean form being attracted by Jessica's finger, the half bean fell in her hand and instantly ate it. Her ass grew even more at the point it ripped her panties, and her height went to 6'2 to 6'6, being able to touch the ceiling with slightly raising her hand.
Jeff, lying on the floor, looked terrified at Jessica as she approached him covering his entery body with only her shadow.
"What do you think of mommy's new features?" She giggled and grabbed him from his arms like he was a doll, "Oh Jeffy, I would like to eat you and have that little thing you have there" she said looking at his crotch and dropped him on the floor "but I love you so much that I couldn't do that, I better eat your father, having some male features in this precious body wouldn't be bad" she smiled as she played with her breasts.
Seconds later, the bell rang while the front door opened, "I'm home sweetie" yelled their father. "Speak of the devil" Jessica said as she licked her lips.