Peter was having the time of his life- Derick and Chad had whimpered and shown the huge boy the most extreme equipment, rarely used even by the largest guys in the gym, and he made it seem like child's play. He had to be careful, since if he let Joce grow him too much more they might become suspicious and ruin their fun.
Still, there were other ways to feel big...
Peter remembered the feeling of his abs filling out, and thought of his options. Joce, following along at home, knew his plan of action and worked accordingly.
"Damn, I'm so thirsty, I could drink a swimming pool." Peter looked around for the water fountain. Derick and Chad watched as Peter spotted it and began towards it. How was the huge man supposed to manage to drink from such a small device?
Their questions were answered when Peter went for the hose laying next to the fountain instead. Some of the body builders used it cool off quickly between workouts- but surely he couldn't need that much...
Peter shoved the hose in and turned it on full blast. It took quite a bit of self control not to groan with pleasure as he felt the sensation of growth return; his abs forced further and further out as Joce helped him contain the massive amount of water.
Derick and Chad gaped in horror as Peter finally turned off the hose and lovelingly stroked the side of his stomach. His abs, while still well defined, seemed to strain in order to hold in a massively huge stomach, well filled with at least 30 some gallons of water.
Peter had half expected his stomach to sag to the floor, bloated as it was, but being so gargantuan already the muscle around it held it like a tight water tank under his pectorals. He could just see his abs now, frighteningly large and distended, peeking beyond the massive pectorals.
"Ah. Nothing like a little drink in between sets." He grinned at the two men, and patted the stomach, which bounced slighty. Back to the machines!
"Man, I'd hate to see him really thristy!"