End of the day

Amy was very satisfied after her little visit with the student but the stone seemed to almost demand to be used. After her shift had finally ended she decided to head to the gym and test out the stones power once again. Changing into her workout uniform in the locker room she spotted a teen blonde also changing. Deciding to test the stone once again she felt the runes grow warm as she sat next to her. "Hey whats your name." Amy asked casually.

"Stacy." She replied slightly blushing at the other girl.

"Dont be nervous we are both girls here." Amy assured her. Stacy seemed a little more at ease as she looked for her top. Using the stones power Amy gave her first command.

"Why dont you go without the top there is no one else in the gym at this hour." Amy ordered.

Stacy seemed to think before agreeing and with only her shorts began to walk out of the locker room. Feeling herself get excited at the prospect of playing more with the young girl she also chose to lose her own top. Amy followed Stacy as she made her way to the treadmill. Side by side the girls began to run before Amy felt the crystal again. Another command and both girls were now naked as they continued their run. Another mile and both girls looked exhausted. Looking at the girls tight body Amy had another idea.