As Baxter stared at himself in the mirror, he noticed more gray hairs poking out of his temples and his chin. His receeding hairline grew larger, but stopping shy of an inch of hair between that and his bald spot.
His body hair thickened and made an even coat sprinkled with gray hair. His penis was also matures, hanging very thickly between his legs with a long hairy foreskin and very low, swollen balls.
He panicks, not wanting to be an middle aged man, so he quickly gets dressed, noticing that his body was too large for his clothes, they clung tightly to his fattening beer belly and body. He needed to get back to the lab...