The alternative version of Roommate's Waifu… they may or may not have all been written in the same crazed night…
Artwork sauce: https://gelbooru.com/index.php?page=post&s=view&id=2069549
Daniel was regretting making that bet. His roommate and friend, Stephen, was a wizard, and they were both fans of the anime Love Live, but disagreed over which girl was the best. They’d made a bet over whose best girl would do better in a popularity poll. Whoever lost had to get turned into the other’s waifu and act like their girlfriend for a day, and had to do everything that they were told.
He never understood why his friend liked Nico. He thought she was the worst, but had to accept his loss. It was his first time being transformed. Stephen worked the magic. His entire body felt out of his control, like it was weightless, and he became lighter and skinnier as he shrunk down, and continued shrinking to a very short stature. His hair straightened and became black, forming into Nico’s pigtails. His chest and ass grew, but only for a moment, before stopping at a small size.
He braced for the next part. They’d agreed to some minor personality changes so it would be easier to act like the character. In the show, Nico was kind of abrasive and self-centered, and she overly compensated with an exaggerated cute persona on the outside. He thought that kind of personality was unpleasant, and wasn’t looking forward to being like that. The spells hit. She started to worry that her friend was going overboard with the mental changes, but she had no way of telling how much was different. She checked herself—her mind still felt like it was Daniel, so it couldn’t have been too much. Looking at her body, she thought that she had turned out kind of cute. She wasn’t comfortable with being turned into Nico, but thought that maybe, sometimes, she could be really adorable.
She looked at Stephen, who was giving her a nervous smile. The way he was staring made her uncomfortable. She tried to make a frown. But on Nico’s face it came across as her signature annoyed expression—one that her friend found irresistible. She started having second thoughts, she didn’t like the idea of having some of Nico’s personality, and the fact that it didn’t feel wrong made it more unnerving. But she understood that Stephen wouldn’t be able to control himself having his best girl in front of him. She thought that she might as well treat her friend.
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She lay with her back on the bed, naked and kissing her friend, her body completely overcome with unbelievable feelings of ecstasy. Every movement, every touch that reached her sensitive body set her on fire. It wasn’t long before the hugging and kissing became proper sex. She knew it was wrong, that she shouldn’t be enjoying this, but she returned the affection, knowing that she wouldn’t be able to make herself stop. She tried her best not to think. She couldn’t let those thoughts get in the way of these insane feelings of pleasure.
Suddenly, she remembered something. Didn’t transformation spells become permanent if the subject became pregnant? With sudden clarity, she pushed upwards, trying to get off her friend, who was suddenly gripping her harder. But her tiny body had no strength to resist. Then…
In the confusion of emotions, as much as her mind was telling her that she was the cutest, that she was the best idol around, she never wavered in her conviction that Nico was the worst girl. She’d let it come to this, but she was NEVER going to say her terrible catchphrase…
NICO-NICO-NII!