Transform her into a Koopa

Bowser then said "You know, I guess one issue is the two of us not being the same race. Not to seem racist or anything but it would be hard for a Koopa like me to be....compatible with a human. Or is she a mushroom person?"

Kammy thought for a second. "You know, I never thought of that till you mentioned it. But I might have an idea. I read up on a spell to transform one's race to another. If possible...."

"You can turn Peach into a Koopa like me?"

"Exactly! She might end up even more sexy then she is already. She may also see you more attractive when in that form."

"Perfect! Then when we kidnap her again we will turn her into my perfect Koopa queen! We might even be able to have children."

"Don't you have enough children?"

"Yeah but I don't mind having more to fight for me. Also, Junior can finally have the mother he wanted."

Kammy nodded and went off to study the spell to get it done right.