The two pig boys grunted and oinked as they continued to tenderly rub Justin's body between the two of them. Each time one of the pig boys rubbed his body he felt himself transform a little more. His body felt heavier and heavier as his body began to plump up.
Justin knew he had to resist the extreme pleasure caused by their combined caresses, but every time he started to focus his thoughts one of the pig boys would rub him in a new and more sensitive place making him lose his concentration.
After a few minutes of this Justin was as large and fat as the two pig boys he was sandwiched between. Justin then felt his nose turn upward into a pig snout as a small curly tail grew above his butt. His toes merged until he only had two then his feet began to harden and reshape until Justin was standing on pig hooves. Several of his fingers then merged and hardened until both of his hands had three hoof-like fingers.
The two pig boys continued grunting and oinking while they rubbed his body. Without realizing it Justin had started to oink and grunt as well.