John finished with the priest and the police, who still couldn't believe what their eyes were seeing. He left them to it and walked back into his house to clean himself of the demon blood.
He walked up the stairs and into his bathroom, catching a glimpse of himself in the mirror. Despite being covered in blood spray, his six foot muscular frame was impressive, even though he had a bit of a beer gut. Dark brown hair was cropped close into a military cut, a few days of stubble growth covered his chin.
He stripped out of his clothes wrapping them in a dirty towel, so as not to get blood everywhere. He looked at himself and sighed, it had even soaked down to his skin, streaks of blood covering his limbs and hairless chest. With another sigh he walked over to the shower, turning on the knob, to let the water heat up. A tingling sensation over took his body as he waited, and as he stared the blood absorbed into his skin, leaving him completely clean. Then pain shot through his body, doubling him over as he groaned in agony.
His cock twitched, his balls swelling until they resembled tennis balls, his cock hardened and grew to a massive foot long monster. He tentatively reached for it, gasping at how sensitive it was, sending waves of ecstasy through his body. John began to jerk himself off, not noticing as the hair on his legs began to thicken. His beer gut vanished into a six pack, which soon became an eight pack as he swelled with new muscle, gaining almost a foot in height in only a matter of seconds. His legs continued to get hairier until it resembled fur. His legs began to rearrange, forcing him to his toes, which began to fuse, the nails becoming thick and hard. Soon he was standing on hooves, new goat like legs supporting his body.
His skin began to darken, taking on a reddish cast, stretching as even more muscle formed on his bulky frame. Hair grew in on his once bare chest, forming a v that grew to met the shaggy hair around his crotch. His teeth drew to points as to mounds formed on his forehead. Slowly they pushed out, curling back into a pair of ram's horns. With a final shudder, two large bat like wings burst from his back, flapping a bit before folding up behind him.
John quickly reached his climax as he looked at himself in the mirror, near seven feet of towering demon masculinity, and collapsed, darkness invading his mind.