Your friend seemed to go through men faster than you could count, dating a new one almost every other week. They would never seem to work out, quickly disappearing from his life. You weren't sure how it kept happening. Your friend's cock was a dream, a thick tube swinging between his legs. It was visible in all his bottoms, and the few times you saw it semi it was a good way to his knee, outlined pressing against the fabric.
You were shocked when he started taking an interest in you, coming after you. How could you say no?
You'd never taken anyone that big, but after a week it could slide right in, your mind instantly in heaven. You'd even started doing it in the morning when your hole was still slick with last night's fluids.
You woke up one of those mornings with his member already inside you, a loving gaze as he stared down at you. Everything felt so slow and lethargic, your body filling with sexual energy from the thick rod penetrating you.
He placed a hand on your side, the touch instantly sending shivers up your body. You couldn't help but feel yourself melting into the bed, his cock radiating waves of pleasure that rippled through you. His fingers trailed up your stomach and chest until his thumb reached your lips, pulling it down.
You weren't quite sure what happened next. You felt his cock jump inside you, the sensation immediately making you nauseous. Your entire body tightened and stomach clenched sending a glob of salty substance into your mouth. The thick fluid spilled out over your lower lip without your control, hitting his thumb before dripping onto the bed.
You looked at the fluid in horror, your eyes wide as you watched him pull back his thumb and taste it. He smiled a sly smile that sent chills running down your spine.
"Don't worry, it's all part of the process" He said with a wink, putting his hand around your wet mouth and gripping under your jaw in a chokehold.
For some reason the touch was electric, involuntary twitches forced across your body that sent another glob of fluid out of your mouth. You felt it dribble down your chin and onto his hand. This time you had the chance to taste it as it started to drain back down your throat, your tongue recognizing it instantly. It was precum.
"What's happening?" You asked, struggling to speak from the liquid filling your mouth.
"Haven't you noticed?" He said, dismissive. "You're turning into my cock"
You took a moment to process this when you finally thought to look down, realizing what was happening. Your legs were no longer wrapped around him, but instead dangling from his crotch turned into his massive hanging ballsack. Your dick was missing, your upper body starting above what had been your bush. The hairy mess had combined with your friend's, now attached to his skin.
The rest of your body hair had disappeared, the defining features of your chest and stomach fading as well. You watched as your torso fell limp in his bed. It had started filling up with his blood, your bones replaced with his tissue. Thick veins popped up across your body, running up your figure and making everything stiff. Your arms were forcibly brought down from the pressure, merging with your body once they touched your skin.
That had even begun to change too, your soft skin replaced with stretchy, sensitive epidermis that seemed to reek his smell. The sensation of his touch amplified tenfold, your mind struggling to comprehend the new signals it was experiencing. You struggled to hold onto your thoughts as your body uncontrollably jumped while he played with it, visibly enjoying himself too.
You no longer had the muscles to support yourself. You lay on the sheets, unable to look away from his face as you felt another stream of his precum sent up from inside you. This time it fell up toward your face.
Your vision blurred as the liquid made it into your eyes. You tried to blink to clear them, but your sight only continued to fade out as you turned into a head, no longer capable of seeing.
You could still somehow feel and smell everything around you- the wetness from your fluids, the musk of your sweat. You guessed at this point those were his fluids now that you were a part of him, your sense of self beginning to erode. You could no longer picture yourself as being your own, permanently affixed to him as his tool.
His hands could now wrap almost entirely around your new girth, the compressing pressure sending electric signals through your being. He started moving them up your long shape, eliciting a constant stream of his precum to pour out from your mouth. The electric buzz that had usually only filled your cock when you were edging now spread through your entire body, overpowering your thoughts as your nerves were fried.
Your mind began to go as your nervous system simplified, now only capable of feeling senses of pleasure. The buzzing increased, drowning out your consciousness until you felt his balls heave. A massive explosion erupted in your head as the last of your cognition shot out from his tip, leaving you empty aside from the cum left inside you. Your awareness decreased as you felt yourself shrink, turning into his limp dick with your only purpose to be used.