Study It

"Before I do anything, I better figure out what the fuck I'm dealing with, this is a parasite. It could be an alien for all I know. It doesn't seem to be spreading though"

He looked down at his body, the worm finished retreating into his normal thumb sized dick, hanging limply.

"That was the weirdest thing I've ever seen", he said as he lifted his dick with a pinch of his thumb and forefinger. "It looks normal and feels ok, maybe I'm losing my mind." A last bead of cum worked its way from the tip of his penis it had a slightly oily sheen. "That looks different, maybe this thing is using my body to reproduce. Could I even get it removed, its attached to me pretty seamlessly."Alex ran his fingers over the base of his cock, then over his balls. "This does not feel different, I don't feel any different, just horny." Alex said a little frustrated.

"I wonder if this worm adapts to its host or vice versa. It could be looking for a mate or it could just be accenting my traits, I was pretty horny before, and who wouldn't want an bigger member or a better orgasm. Argg, I just need to fuck to get this out of my system."

Then a voice in the back of his mind said "it could tell him a lot about the worm's intentions."

"I cant fuck Stacy, what if it hurts her?" Alex thought

Then his thoughts were interrupted by a knock at the door.