Claire touched her gravid belly. "I just feel so unsexy like this. I'm so bloated." She complained.
"Don't say that," Kevin assured her. "You're as sexy as you've always been. In fact, I find you even more beautiful now."
"Of course. Of course. You always say that" She nodded along, acting annoyed, but still really liking his words of affirmation.
Claire let a finger run across Kevin's shoulder. "I want to be young again." She said. "I want to be 18, back when I was really skinny." She sat down in Kevin's lap. "And I want to be the younger of the two of us. In fact. I want you to be older. How about 40? You can be a DILF and I can be your young plaything."
"Alright." Kevin agreed, and so, both of them concentrated on becoming their desired age.
The first immediate thing was Claire's belly deflating. Her pregnancy gone for now. She took the opportunity to press her torso onto him, breasts pressing against him. They kissed, and as they did, Claire felt something tickle her face. She released the kiss, revealing her now bearded boyfriend.
"It suits you," she smiled.
"What?" Kevin asked.
"Your beard." she specified.
He touched his face. There was a beard there alright, a much fuller than he could grow before. Also, his chest was harier.
Claire took in her changing boyfriend. He looked mature. His skin was rougher. His face had lines. A nice surprise was that he was more larger, more muscular with huge strong arms which Claire wanted to be held by, restrained by, and dominated by. Now as they ate, he was technically old enough to be her dad. While he was a dad-to-be before, now he was a proper DILF in the aesthethic sense.
Meanwhile, her own changes were about done. She'd returned to the body she had at the end of high school. Back when she was on the swim team and at her fittest. Not a huge difference from her normal self, but with Kevin's shift in the opposite direction, it created a nice contrast.