Erika sat nude on the window sill of her sister's room that was only sporadically occupied when she was on break from college. Erika was getting used to Nats' body. She was now able to keep the body going from minutes to hours free of having to wear any clothes that had Nats' DNA or memories in the fabric. Despite her growing powers, needed a better word, she was worried about being stuck as Natalie permanently. She had managed to also turn back into herself by using her own panties and the salve.
She was regularly adding nearly a decade and a different body in less than a minute. This was truly amazing stuff. However being Nats was just allowing her to become what she had in her future. She found a pair of Nathan's Calvin Klein briefs. She pulled it up and sprayed the salve onto the fabric. Nothing happened for a while and she thought the whole thing had fizzled out. Then she doubled over in pain, her tits bouncing as she felt what was like a punch to the gut.
Erika collapsed to the floor twitching and jerking as the changes burned through her. Her vagina felt like when she stuck her finger in it, but she felt the pressure this time was like well she had to take a shit. A pressure was coming from inside her to press outwards. It then came out of her and started poking herself in the leg. It grew longer and starting off the size of a child's dick it became bigger and larger creating a tent in the fabric of the briefs. The dick was soon hair, completely replacing her camel toe that soon her legs and bones cracked.
Birthing hips were replaced by a man's hips and muscular ass filled the briefs to the square inch. Her hair pulled into a flattop hair cut that Nathan had at the time. Her chest felt like it was being inflated as her breasts flattened and became hard muscle. Nipples disappearing almost to nothing. Her face broadened as it became fuller and stronger looking. His nose looked like an arrowhead. His jaw was covered in stubble as he had a shadow of a beard. Ears also changed, mostly in size.
As the person became more defined the legs became longer and hairy. His fingers went from fine and feminine to hard, callused and strong fingered. What had been a toned body had become bulging with muscles. Nathan was a lifter Erika knew. Erika was curled up in a ball, slowly and painfully he stood up as Nathan. As Nathan was standing in front of the mirror he looked at the body and flexed it just like he had tested Nats' body. As he checked over the new body he decided that his name would be Eric.
Erika had had a babysitter that had moved an hour away to another house. She was a model part time and at the local Hooters during the other hours called Marcy. Eric decided it was time to see what it would be like to have sex in a man's body.