I looked down to see I sported an erection at Joey's transformation. I wasn't attracted to him, but his changes into a musclebound stud of a man was something I always dreamed of. However when I saw my erection, I noticed it wasn't growing larger, but smaller instead! I excused myself and left Joey to himself as I ran to the bathroom. When I was safe in the bathroom, I pulled my pants down and saw to my horror that my dick was barely 3 inches long erect...and still getting smaller but remaining hard. After a minute of staring at my shrinking dick it finally stopped at just a tad over 2 inches long. I was mortified by this change which was made even worse when my dick went flaccid to barely 1 inch long. I had a child's dick and marble sized balls! Not only that, but I looked shorter and less buff in the mirror; my body was skinnier and I had no signs of body hair anywhere, even my armpits were clean now.
I struggled to fit my pants back around my smaller frame before checking on Joey again. What I saw was a 6'5'' hairy stud laying on the couch stroking his 10 inch erection. The man had the same features as Joey did, including the same birthmark. The man noticed me and smiled. "Hey man, wanna help me with this." Joey said gesturing at his dick. "I don't know how to work this". I could smell his BO coming from his hair covered body. Joey now had rippling muscles hidden beneath a hairy pelt of chest hair and wide treasure trail.
"Joey, we need to call your father. Something is wrong" I said.
Joey got up and stood over me. He had to be almost a foot taller than me now! "I don't see anything wrong except for you wearing clothes" Joey replied as he literally tore off my clothes, leaving both of us naked.
"Joey stop now. You are an 8 year old kid! Control yourself!" I said. The testosterone in his body must be affecting him...THAT FORMULA!
"Maybe in mind but in body I'm a grown up." Joey said as he cornered me.