Ethan had been watching his twin sister with envy for many years now. Not so much her, but her clothes. The jealousy was driven by what Ethan was coming to recognize as his over-developed fashion sense. He loathed the lack of style in boy’s wear available to him.
He looked down and sneered at the white briefs he wore. He looked over at the open bathroom door. He could see right through it to the open door into Madison’s bedroom. It was like her bedroom was calling to him. Come look. Come look!
He and Madison were best friends. They shared everything. The bathroom doors had never been closed. They had no body shyness with each other. While Madison grew into a beautiful and curvy teen, Ethan resorted to body-building exercises as his only source to develop his chest to match.
Madison’s clothes got sexier as she developed. Ethan’s stayed the same. They shared everything except Ethan’s secret desire to dress like his sister, to be identical twins.
Madison would be gone for several hours, and here were the open doors, daring him. But, up until today, Ethan had resisted that dare. His desire had grown. He could no longer resist. He quickly crossed into his sister’s room with his heart pounding and stood before her vanity. He knew she kept her undies in the left-hand drawer.
Ethan slowly drew the drawer open and stared in wonder at the variety of colors, types, and textures. There seemed to be hundreds of panties here. In contrast, Ethan’s drawer had eight balls of white and plenty of room for his socks!
Ethan ran his fingers through Madison’s panties, feeling the different textures. He felt his cock stir. He whipped off his briefs and tossed them back into the bathroom. His briefs landed on the rim of the wastebasket. Good, that’s where they belong!
Ethan’s cock got hard as he considered his next action. While he desired to dress sexy, like his sister, he had no desire to be a girl. He loved his cock. He loved playing with it. Like every boy he knew, he wanted to push his cock deep into a willing pussy.
Ethan’s fingers found a pair of silky panties. He pulled the burgundy-colored panties out and wrapped them around his stiff cock. It felt so good! He stroked hard and fast, coming in seconds. He brought the soiled panties up to his nose and sniffed deeply.
The scent of fresh sperm kept his cock hard. He licked and sucked the panties clean. Ethan loved the taste of his spunk. Another secret he kept from his sister. He rubbed the damp panties over his face and down onto his chest. He kept going, stroking his thighs and ass.
Being on the school’s swim team gave Ethan the excuse to keep his body hair-free. Ethan’s cock throbbed as he slowly slipped the panties up his smooth legs. He settled his balls into the crotch of the panties and let his cock stand proud. The panties were cut too low to contain his hard-on.
Ethan pushed the drawer closed and slid open the one on the right, where his sister kept her bras. He found a matching burgundy camisole and pulled it over his well-developed breast muscles. He then sat down in front of the vanity’s mirror.
Ethan had been paying attention to Madison when she did her makeup, even assisting her on occasion. He knew how to apply the foundation and the various colors to turn his plain masculine face into a cute feminine one.
When she was done, she studied her image carefully. Wow, this is Thena! Overcome with emotion, Thena came again. She scooped her come up with her fingers and delivered it to her waiting tongue. She sucked her fingers clean.
Today’s activities were enough for the first time. Thena cleaned everything up, leaving no trace, and returned to Ethan.
~~~
Thena enjoyed several private sessions fully dressed and learning to walk in heels. She even ordered several wigs to complete her transformation. These sessions always ended in sperm blasting orgasms.
The school pool closed for maintenance for a week. As a result, Ethan’s swim team met in a classroom for ‘Health’ lessons. Since there would be no changing in front of others in an open locker room, Ethan decided to wear his sister’s sexy underwear to school each day.
Having girl’s garments under his school uniform was highly arousing. Nobody suspected. It was his secret taboo. He could feel them all day. Normal Ethan among his friends and classmates, with lace panties and a bra. Thena was hiding in plain sight. He spent hours masturbating each night.
When he got to the classroom today, he found the door locked. A note stated the pool was open, and the swim team was to report to practice. Ethan was scared shitless. How would he change while wearing his sister’s underwear?
The last school period was when all the sports teams practiced. The gym locker room was packed as usual when Ethan arrived. He opened his locker and grabbed his swimsuit. Then, making excuses about needing to shit, he headed for the toilet stalls.
Ethan successfully changed and got back to his locker, hiding his sister’s things in his uniform. After the regular team practice, Ethan asked the coach if he could swim extra laps to improve his breaststroke. The additional training would take time so he could be the last one in the locker room.
Swimming the extra laps did the trick. By the time Ethan returned to the locker room, the place was deserted. However, he still took the precaution to change in a toilet stall. He failed to notice that the lock didn’t latch when he closed the stall door.
He had the bra on and was just slipping the panties up when the door swung open. A mountain of a boy stood blocking the opening. A very naked boy with muscles on muscles. Putting on Madison’s panties always gave Ethan a hard-on. His hard-on sticking out was now on full display to the boy looking in.
“I thought I saw lace panties flash under the door. Wow, you look HOT!” The boy fell to his knees and took Ethan’s cock into his mouth.