Tom walked past the buffet to the changing rooms. No one was around yet, but he changed back to a girl (with ridiculously large breasts) and walked in - pushing his tits through the door. His tits sprayed the lockers, a small mass hid in the top of the lockers. His chest was down to DD, so he decided to roam the locker for the first shift - mostly volley ball players to switch their clothes.
Within minutes women approached. The tone & tanned bodies screamed athletes, and the cold morning meant they had to change first. He was staring so much he decided to enter a stall. His body went clear, opened the door latch, and flowed to the ceiling to watch from above. They were hot women, but half had small chests, the others had breasts that needed some adjustment first. He glimpsed their sports bras and had his blobs copy the tops. They flowed over the real tops and replaced them. Tom would feel every part of body experience a stretching sensation as the extensions molded to their bodies.
Jenny had a simpler plan. The guys arrived for the game while Jenny watched the practice.
Tom walked up and grabbed her perfect tits. "Wanna screw?"
"Grow up, the girls ready?", "Yes, every one is wearing me. The guys?", "I'm a genie, I can hit them any time.", "We'll need the ball fixed." Tom sounded worried she forgot a detail. Her tits surged out, turned white, and soon she had literal volleyballs on her chest. They popped out and rolled to the real ball bag, as the real ones bounced toward a topless sun bather on a tower. The balls hit her small chest dead on, melted in, and soon she was sporting giant tan breasts. "Why waste them?" Jenny smirked. Tom realized the girls came out to practice and his speedo grew a heavy lump to flaunt his crotch. Jenny already firmed up her huge tits, nipples visible, for the boys.