You wake up and immediatly notice the changes to your body. You are huge, your muscles are bigger than those of a professional bodybuilder.
You flex and kiss your massive biceps, getting hard at the sight. Then you notice the changes to your dick and balls, this turns your grin into a devilish smile.
"Oh yeeesss"
you whisper to youself as you grasp your now 14 inches long and 5 inches thick monster cock and shudder at how sensible it is. Deep moans come out of you as you slowly start to masturbate.
"This is amazing."
You whisper as you pinch one of your nipples.
"HMMMMM"
You gasp at how inhumanly sensible it has become. This makes you grin, maybe the symbiote isn't so bad after all.
"Feels so gooooood"
The symbiote then flashes images of monstrous black figures into your mind each bigger and stronger than your current body. This makes you even more aroused. You are now furiously jerking your monster cock while licking the tip. You notice your tongue changing to a long slender red tongue reaching up to 3ft long. This turns you on as you coil it around your cock, keeping it wet and hot. Deep black precum starts oozing from your dick. Once the cum touches your pecs, you can feel the muscles absorbing it. This makes feel them grow a little, making you groan.
"HMMMMM Moooore"
You moan to the symbiote. You then feel your skin changing as thick black goo ooze out of your pores, covering your body. This time though, you love it. Your teeth become monstrously sharp and your eyes become twisted alien white patches. You grin at your body as your pleasure peaks.
"GIVE ME MOOOOORE"
You scream to the symbiote who gladly feeds its hungry host. You feel you muscles growing even more, pushing the limit of what is humanly possible. Your shoulders spread wider as more beef is packed on your upper body. You feel your pecs pushing your symbiotic skin as they inflate up to your chin. You arms become longer to make room for your booming biceps. They grow and grow until they get bigger than a human head. Your abs grows to a huge 8 pack, each ab strong enough to break steel. Your legs also grow longer and wider to support your hulking frame.
"YEEEEESSSSSSS"
You scream in pleasure, totally in love with the symbiote.
"WE ARE ONE!"
You cum in delight of your new powers. Blast upon blast release from your dick as you drink as much of the corrupting goo as you can.
"HMMMMMMM"
You moan as you feel yourself growing in size. After 5 minutes of non stop cum shots, you reach 7ft tall with a physique that would put the Hulk to shame.
"Time to spread our gift"
You say to the symbiote, flicking your tongue. You wonder who you should infect first.