After he was cleaned off the biker pulled a pair of shorts from his leather jacket and handed them to the hairy man, "Here, put these on."
His cock deflated, he quietly took the shorts and pulled them on, still pretty much in shock at the changes in his body.
The young doc pulled his car up to the alleyway as the biker led the man to it, old clothes in hand. Both climbed into the back seat before the car started to move.
Ten minutes later about half way to the lab the biker broke the cold silence, looking into the teary eyes of the once teen, "So, what's your name kid?"
The man replied softly "Bobby. Wha- what happened to me."
"Well... you grew up, your a strapping man now ROBERT."
Robert just sniffled as he ran his alien hand across his hairy chest.
The doc just smiled, he had two test subjects already. Looking in the rear-view mirror he could see the 40 something biker's hair was already starting to slowly fill back in, gray hairs less and less visible. Hopefully the two would be locked up in the lab before the biker noticed...