Growing up as a prince, you knew you would marry Aeloria since you were a kid; it was an arrangement to make peace between the human and elf kingdoms. From the many times she has visited you, you fell in love with her ladylike and soft behavior; she blushed easily and was calm and selfless. You couldn't wait to marry her.

Growing up, the only thing that would really bother you was Grunda. She was a middle-aged, tall, and obese woman who worked as the royal blacksmith. No one denied her talent; the weapons she made were top quality. Still, since you were just a kid, she would often insinuate to you and flirt. Being the dirty and vulgar woman she is, she would often put her hair and sweaty armpit on your face or go where you were sitting just to fart loudly and leave. You wanted to inform your father of her behavior, but being trained in combat, her weapons were always the best, so you decided to tolerate her. The top-quality swords and armor were worth it.

When the wedding was finally being organized Aeloria moved to your castle, she was marveled seeing the human realm, she brought with her a strange gem that her father found in a volcano, it was precious, she always carried it with her, wanting to do something for her you took her with Grunda so she could make a collar with the gem, watching her work Aeloria was delighted, in the elf kingdom all women are skinny and delicate so seeing one so big and strong was something new to her, she saw her sweat and use the hammer and clapped, thinking she was incredible, she said she wished she was like her, Grunda luaghed and said she would also love to be Aeloria, the gem reacted and made their spirits move to the body of the other, when they woke up in the body of the other Aeloria played with her new huge and round belly while Grunda sat and scratched her new small and firm boobs

Grunda: So this means now I am the one marrying and fucking Prince Boy? She smirked, enjoying her new small and gorgeous body.

Aeloria: Uhhm...I would like my body back...She said blushing, feeling her new fatness.

Grunda: Nah, I think I'll pass on being obese and 52 again. I won the trade, so I won't blunder it. She winked at you.