Artwork sauce: https://gelbooru.com/index.php?page=post&s=view&id=2232164
A really traditional caption as far as lewd ones go, not my first in third person but first one that I decided to release… I may or may not have already written two sequels.
Stephen wasn’t much of a wizard, but all of those with powers knew at least a few cool spells. He’d moved for college in the city, and was getting used to using magic for quick entertainment. He and his roommate and friend, Daniel, were both fans of the anime Love Live, but disagreed over who was the best girl. They made a bet over which one would win in a popularity poll. The loser would be transformed into the other’s waifu, and would have to spend a day going out with them as their girlfriend, and do everything that they were told.
He lost. He was going to have to spend the rest of the day as Maki. The magic was not difficult, it just required a lot of power. Warmth spread over his body as he shrunk down. Bright red hair appeared around his head, his face becoming cuter and very pretty. His butt and chest formed out as his legs slimmed down. He also gave himself a few mental changes, but only a tiny amount. They’d agreed that the loser would get a slight personality change to make it easier for them to act like the character. Maki was supposed to be more stubborn and blunt, but more easily flustered. Nothing too bad, she thought. She'd really been hoping to see her friend as Nico, though.
She looked at Daniel, who was silently staring back at her—his dream girl. He reached a hand out, and she reached out her own and took it, squeezing his hand in her delicate fingers. She saw a bulge forming in her friend’s pants. Suddenly, an intense feeling of shyness and embarrassment came over her. Her feminine cheeks flushed red, and she kneeled down on the floor. Daniel grabbed both of her wrists. An unknown feeling took over her body, and, breathing faster, she brought herself closer and gently touched her friend through his pants. It was known that getting pregnant while using body transformation magic would make the spells permanent, but she was sure that they could get away with having a little fun.
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She leaned over the bed, clothes still on, holding herself up with her arms as Daniel fucked her from behind. The mental changes continued to surprise her with strange, conflicting emotions, making it hard to concentrate on anything else. She tried not to think, completely giving in to the wonderful feelings of sex as her friend held her by the hips and pushed into her. Everything was so new and amazing, her mind and body so focused on the new sensations, that she wanted nothing more than for it to continue forever. Her friend, trying to make it last, went as slowly as he could, bringing her to orgasm multiple times. When he could resist no more, he forcefully pushed forward, harder and harder. As she tightly gripped the sheets, feeling her partner’s fluid filling her insides, she suddenly remembered what was wrong.
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Only regret was left. She slumped down on the bed, her tits falling in front of her as her face gave a look of resignation. She grit her teeth, squeezing her eyes shut. She was stuck as Maki for good, and this was going to be her new body, her new personality, for life. Wanting something, anything, to avoid having to come to terms with this new reality, she hugged her friend, reaching down and teasing at his pants, hoping for round two.