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by Kyuna Author IconMail Icon
Rated: 18+ · Interactive · Fanfiction · #1774589

Sonic and Co. are trapped in a Testing Chamber where they are at the mercy of a Mastermind

This choice: Stab Sonic with another strength serum making Sonic into a sexy lean muscle mean  •  Go Back...
Chapter #8

Stab Sonic with another strength serum making S...

    by: Fuzzball Author IconMail Icon
Sonic let out a gasp when the syringe into him. What had Tails just done to him? Sonic's body felt like it was on fire. But at the same time he felt so horny. He started to grow in height now he was up to Tails' shoulders. His cock and balls swelled in size. His body started growing muscles. His arms and legs got thicker. He gained a six pack and some toned pecs. His hips were a bit wider and his thigh muscles were huge. "Damn Tails this feels great," said Sonic. His liver smiled at him. Tails got on all fours sticking his massive ass up and started wiggling it. " Let's give your new equipment a test drive, " moaned Tails. Sonic studied his huge dick into the fox's massive butt. With each thrust Sonic felt Tails jiggle. Sonic pounded his fox like a maniac never wanting to stop. Finally Sonic blew intoTails. His already big belly swelled in size. Tails laid on his back and beckoned Sonic and wrapped his arms around his lover. Tails started kissing Sonic. Sonic kept caressing Tails' massive belly. While they kissed Tails' body started absorbing all the cum in him. His muscles and fat increased in size, making moans the whole time. "Wow, you got bigger. And sexier," said Sonic. "So now what?" Asked Sonic. Tails was giving it done thought when his big gut started growling. Tails wanted some food, but he also wanted to spread the love of what he'd found. "I need something to eat. While I find some food, and perhaps find a way to synthesize more of this wonderful serum. While you find someone else to give this to," said Tails holding up another syringe. Sonic smiled give Tails another deep kiss.
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You have the following choices:

1. Stick with Tails as he eats and studies.

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2. Follow Sonic as he finds someone else to alter.

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