Harry bent over looking at Erin didn't see him change, but then felt a shrinking sensation. Harry looked down at his body and saw his clothes no longer fit him and that there were some more slight curves. Harry patted herself on the chest and found some small squishy breasts and checking lower down found her butt and hips were bigger and there was no bulge at her crotch.
Harry said out loud "Great... well least I can change back." she help her hand up and went to the menu in front of her. As Harry found the option for male that she was about to press some hand came from behind her and then started groping her A-cups. Harry's face turned red and then asked "Wha-" then saw a teen male about her age nude behind her.
The guy said "Come on, don't you at least wanna experiment a little with this machine? Here try this." he then took Harry's hand and scrolled to a setting real quick and then poked it with Harry's finger.
Harry then turned around as the guy let go of her hand and then got a better look at the guy and saw the guy had Erin's features... Well who else would it have been in here. As she turned she felt her breasts flap around and looked down and saw her now much larger breasts stretching out her old shirt. Then she asked "Erin what are you doing?"
Erin said "Just wanted to try to figure out if I was more comfortable as a guy or girl. So i'm seeing what it's like to be a guy. Darn this sausage between my legs is sensitive."
Harry looked to the panel to change back with Erin looking rather Horny and the only girl around being her. As Harry reached to the panel what happened?