"I don't know how it works but there is this computer program. It changes people." He gestured as his own improved form and Josh looked on dumbfounded.
"Look, I will show you.."
He sat down in front of the computer and bought up his boyfriend. Josh's image was of a slim, healthy young man.
"So what shall it be? A six foot stud like me?" Ty quickly change some settings and clicked 'Save and continue'. He looked around to see the changes take effect.
Josh had stood up, cum dripping off him in places. Slowly he began to grow taller and fill out. His cock hung lower and fatter between two thickening thighs. His chest bulged out and his arms swelled up. All the time he looked at himself, perplexed, in the mirror. As he grew closer to the six foot mark his cock had grown hard, large and proud.
"Ty, I don't know how this is happening but keep it up! Fuck this is amazing!"