"Stephanie." Beck whispered in her ear. "I want you to go to the bathroom and take off your panties. Get dressed again, and when you come back show them to me, but in a way the others won't see."
An excited Stephanie hurried off to carry out her new master's first command. She stuffed the panties in the purse which had immediately appeared along with her new gender. Whether as man or woman, Stephanie hadn't known it was possible to be this turned on.
Beck was having similar feelings. To be able to give an order and to see Stephanie happily carrying it out was gave him a sensation Beth had never known. He liked being in control, and the hard thing in his pants felt like it was the size of a cucumber.
Stephanie quickly opened and shut her purse to show Beck the panties within. Beck grinned and put his hand on her rear end. The sensation that just one thin layer of cloth separated her master's hand from her rump gave Stephanie her first female orgasm. "thank you, thank you master" she gasped.