David had returned from the gym, he was sweaty and decided to take a shower, while that was happening a black viscous substance similar to a symbiote sneaked into his room, he hid under the sheets of his bed waiting for his prey to arrive.
David was already coming out of the shower, he was walking towards his room because he lived alone and he loved to have his balls in the air at home.
Once he got to his room he started to pose and flex his muscles in front of the mirror, but out of the corner of his eye he saw movement under the sheets which ruined his moment.
“What the fuck is that?” he said as she watched it move and moved closer to investigate.
“Oh, it must be a cat, it probably must have gotten in through the window.”
Keeping in mind that it was just a cat, David approached without any precaution being this his biggest mistake, standing next to the bed, David began to remove the sheet.
“Come kitty, I won't hurt you.” he said as he was about to reveal what was there.
David had already removed the sheet and the moment of truth had been revealed.
"I told you not to.... What the fuc---." He said as he saw the symbiote on his bed, he couldn't even finish the sentence because the symbiote without thinking jumped on David.
He was trying to fight it off, but he just had that goo all over his body.
The symbiote was expanding and wrapping itself around his torso, legs, arms, chest and of course his penis, it had his whole body wrapped up, only leaving his head uncovered.
"Please p-please let me go br---". Just at that moment part of the symbiote began to enter through his mouth, nose, ears and another part through his ass, introducing much of it inside David, making him look bigger and with great complexion, widening his biceps, pecs, hips, thighs and legs, basically his whole body was enhancing him.
His eyes as that was happening turned a shade of black, he was feeling a little turned on by everything that was going on.
- "shh there is nothing to be afraid of David, I am not coming to hurt you, I just want to make you into the man you always should have been, let your body and mind relax, I know you like what is happening to you, only now I am part of you, we are no longer two creature, we are just one mind and body, feel grateful for that."
A voice in his mind told him, the symbiote already had him under its dominion, he had no choice, he only had to accept it.
All the parts of the symbiote that were wrapping the body began to merge with David's skin.
That black viscosity was already one not only with David's body, but also with his mind.
David had not yet come to, his memories were being rearranged to make room for the symbiote.
The more it permeated his brain it made him more self-centered, more narcissistic, more horny, everything David had wanted.
He was still naked with his penis in the air, so out of his body that black goo started coming out forming him into pants and a black shirt that allowed him to flex his huge biceps he had obtained.
- “Wake up boy, it's time for you to wake up, it's time for us to wake up...”
David opened his eyes, transformed into a new man, an improved version of himself.
“Hey not bad eh, I look bigger than before, more muscular, I love it.”
David said as he flexed his huge biceps.
The shirt felt so slimy, but at the same time he was so turned on by the feeling.
- "I told you there was nothing to be afraid of, we're both going to be great, David".
“yeah, you were so right, I feel so new, so big, so horny, I could go fuck some guys right now.” The symbiote had also altered David's tastes, he was no longer a straight man, he was a horny dominant gay man looking for any guy who would let himself get fucked and worship his new muscles.
- “I love that idea, but first let me give your clothes a change.”
"I love it, this is sure to get those men's dicks harder, time to go for some fun and spread my seed."