Rick got back into the back of the van, assigned to watch the 4 in their cages as they make their way back toward the lab.
As he rode, his cock strained against his tight sealed bio uniform, he couldn't see the changes happening but he could sure feel them. It took everything he could muster to keep from touching himself.
His suit was getting tight as his fresh out of boot camp 18 year old body grew to 20 years old due to his infection with the now 23 year old Seaborne. Muscles grew and body hair thickened as a short tail pushed out above his ass as his body became 1/8 Chase the dog, 1/8 what Bryan had become (so 1/16 original Bryan and 1/16 his brother Brad) and 1/4 the original Seaborne.
He moaned as the changes completed and his load creamed the inside of his suit just as the van was stopping.