Bio (BioYuGi)
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This is a personal story featuring my own Bio, and Chrissy, who belongs to Kalanosis. This was written for their birthday. Kalanosis is a great, great writer. If you liked bimbos, cows, and squishy bits of all sorts, they're a great person to read. This story is a delicious delight of Bio playing some pranks on Chrissy and enjoying the end results. Considering I like making Bio a bit of a butt monkey, it will likely wind up biting him in the butt by the end.
The device in question was previously referenced in one of Kalanosis's own stories here: https://www.deviantart.com/kalanosis/art/Strange-Troubles-at-the-Lab-728775393 and it's devious ways intrigued me. So I was very happy to get into some of that.
Story contains butt expansion, breast expansion, lactation, and bimbofication!
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On the seventh day of Bio's new perv reality:
A hypnotized, bootylicious snake!For today's story I'm visiting the work of the great artist Jaeh, who I've managed to commission a few times. My latest was this glorious piece of my character Bio with his character Hosemistress: https://www.deviantart.com/bioyugi/art/A-Swirly-Eyed-Serpentine-Swelling-895597558
So I thought I'd write a story explaining how that happened. Enjoy!
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On the tenth day of Bio's new perv reality:
A pageant winner getting huge and big.Today's story is based on a character belonging to SoylentOrange: https://www.deviantart.com/thesoylentorange
It again features my OC Bio performing some unique transformations on her, using some weird things just for the fun of it. Primarily foot growth, just because I don't get many chances to indulge in that kink of mine. -
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On the first day of Bio's new perv reality:
A giant cozy pussy!Welcome, one and all, to the fifth year of Biomas, where I do 12 days of stories in a row leading up to Christmas. I wasn't sure if I should do something unique for the fifth year, but, I'm going to try and make all the stories related to Christmas somewhat, whether that be Christmas presents, holiday-related, or at least winter-themed. Hopefully I can get five years in a row here, I've been suffering from some very bad migraines lately and don't know why, and I refuse to ever plan ahead for these and do the stories on the day they're meant to be released.
So to start with, some original character indulgence, featuring my character Bio, and Nami, as seen here: https://www.deviantart.com/jcdr/art/Nami-500881153 who belongs to https://www.deviantart.com/captainsanji Captainsanji on Deviantart. After Nami helps Bio set up Christmas decorations for a party, she assists him even further by making her vagina exceptionally large. So large that he might just drift off inside of it.
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On the eleventh day of Bio's new perv reality:
A bitchy pair of princesses!For today's story, we once again see my character Bio, along with Ana, who belongs to my friend Panahinuva: https://www.deviantart.com/panahinuva
Bio had a plan. Put a Super Crown on Ana and use the hot new princess to give a gift to another friend, Sora, who belongs to Sorawolf7: https://www.deviantart.com/sorawolf7
Unfortunately, Ana had the same idea, only with Bio being the hot new princess. And when two people put on Super Crowns at the same time, hot makeouts and rivalries ensue.The art used is something that Pana and I commissioned from https://www.deviantart.com/lushaani earlier this year!
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Rise of the BioBeast by BioYuGi
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
01 Jul 2023
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Hello everyone. Here is a story I had been wanting to write for a while, and when I found out it was Kaijune, it seemed a good chance to indulge. Of course, I put it off to the last minute, but it's still technically June on the west coast, ha.
In a very self-indulgent story, my OC Bio is a no-name villain in the My Hero Academia world. He wants to make a name for himself, and to do that, he decides the best way is to turn into a towering, powerful kaiju. It doesn't go exactly the way he planned, but he manages to make do, and finds himself dealing with a few professional heroines who try to stop him.
Hope you all enjoy. I would very much love to use BioBeast in other stories in the future. It's a hell of a lot of fun.
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For today's bit of August of Isane, we have one that was actually gotten for me as a birthday present last month. Credit for this picture goes to :iconmissezzymoreno:, commissioned from :mrpr1993:. I asked if I could use it for this month since it seemed so appropriate and it was a lovely present.
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Growth Comes in the Night by BioYuGi
Fandoms: Batman - All Media Types, Batman: The Animated Series
10 Aug 2025
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I've been in a very big Batgirl mood, quite literally. Marauder6272 did some art for me of this amazingly sexy Batgirl. He did an amazing job with this. She looks terrific. So huge, caught off-guard, and sexy as hell. I was so taken by how well it came out and how menacing he made Bio look in the background that I wrote a story to accompany it, so enjoy some self-indulgent Batgirl expansion.