The memory of what happened while hiding in Belinda's closet kept Mitch supplied with fuel for his nightly masturbation sessions for quite some time. Still, soon it wasn't enough, and he needed to create some new ones. Thus began the painstaking planning of creeping into Belinda's closet; that's when Lady Luck smiled on him.

During dinner on Friday evening, his parents announced that they were heading out to a party. They'd be leaving around noon on Saturday and probably wouldn't be home until early on Sunday. Belinda announced that she had a date that evening, and Mitch managed to hide his anger at the thought of some stranger touching and kissing his attractive sister, chiming in that he would be in his room playing online. Their parents went over the rules for the one hundredth time, and Mitch and his sister agreed to them.

Finally, Saturday arrived, and after bidding their parents goodbye, Belinda and Mitch headed to the TV room to watch a movie until it was time to get ready for her date. It was around six o'clock that they headed to their respective rooms. Once behind the closed door of his room, Mitch removed all his outer clothing and underwear and retrieved his panties from their hiding place. He reasoned that if the panties felt good draped across his cock, then wearing them would be even better, and Mitch was right. The sensation of the silky panties sliding up his legs was beyond his expectations and had him hard in no time. He then approached his door, placed an ear against it, and listened.

When he heard the shower come on, he headed to Belinda's room and her overstuffed closet. Before leaving his room, he locked the door behind him and activated the red sign affixed to his door that said "ON THE AIR." It had been rescued from the trash of an old radio station that was being demolished.

The lit sign told those who passed his room that he was on line with his headphones on, so he could not hear them knock or call his name. Once again, he carefully pushed his way through all the hanging garments toward the back of Belinda's closet, and once again, he made sure there was no evidence of his passing.

The butter-soft panties caressed his cock and balls with every step, and it took a maximum effort not to shoot right there and then. As he had last time, he took a seat on the floor and covered his head and upper torso with the skirt portion of one of his sister's long dresses. The silky soft material of the dress still bore the faint scent of her perfume, and the smooth and cool material caused his man nipples to harden.

He spent a few minutes arranging his hard cock in the tiny panties so he was able to sit comfortably, and he marveled at the way his cock looked in the silky, snug panties. Now the waiting game began, but it wasn't a long wait until his sister reappeared, wrapped in a bath towel and bathrobe. Belinda went straight for the radio and commenced to do a slow striptease to the beat emanating from the speakers as she danced around her room.

Mitch watched spellbound, afraid to blink lest he miss something. Whenever she spun around, he got a glimpse of the landing strip between her tanned thighs, and he almost shot his load in his panties. Belinda finished drying off and spent a great deal of time applying her makeup and blow-drying her hair, then she began to dress. Mitch's eyes went wide when he saw her don an ice blue garter belt, slide a pair of nylon stockings, and then a bra of the same color before stepping into a thong. He was unaware that she owned such articles of clothing.

Mitch didn't fish his cock out to stroke it; he simply rubbed the outline of his hard cock through the material as he watched his sister. She bent at the waist and offered a view of her panty-covered ass to him as she rummaged around in a drawer of her tall dresser.

As Mitch rubbed his cock he fantasized about coming up behind his sister and sliding her panties down, and then taking her on the bedroom floor.

Mitch increased the speed of his rubbing his cock through his panties as he watched the show. She then stepped into a black mini that had been laid out on the bed next to a red blouse. When Belinda stepped into a pair of heels and stood admiring herself in the long mirror, Mitch could no longer hold out and emptied the contents of his balls into his silky panties.

It was a struggle not to moan his pleasure as he shot his load. Belinda left her room and headed downstairs. Mitch strained his hearing until he detected the sound of the side door being closed and a car in the driveway. Belinda's date had arrived, and before he slowly started to exit her closet. He was almost out when, a second later, muted voices came from the kitchen.

Mitch had no choice but to return to the back of the closet lest he be caught wearing his panties. He had just taken his seat on the floor of the closet and covered his naked torso with the skirt portion of one of Belinda's long dresses when his sister entered the room with her date.

He was tall, tanned, and very rugged-looking, just Belinda's type," Mitch thought.

"What about your brother?" Belinda's date asked.

"That sign is lit, and that means he is on line with his headphones playing one of his games," she replied. "And can't hear shit, and with my door closed, he wouldn't bother us."

Mitch watched as their lips met and they embraced. He couldn't turn away, as this young man's hand roamed all over his sister's firm body and eventually slid under her short skirt and worked its way up. As angry as he was at watching this handsome stranger knead his sister's firm buttocks, his lust derailed his jealousy, and he grew hard again.

They slowly slid to the floor, where his sister's skirt was pushed up around her waist, and her silky knickers were removed and tossed aside, leaving her lying on her back in her nylon stockings and heels and begging her lover to fuck her. Belinda's date then removed his slacks and underwear, before producing a condom, which he slid onto his hard cock, before kneeling between her legs.

There was a momentary pause before Belinda's date pushed his hard cock into her waiting pussy, and the moan that escaped his sister's lips as her date entered her was as sexy as anything he had ever heard on the hentai sites. It caused his own cock to become even harder in his panties.

Mitch mentally placed himself into her date's place and imagined that it was he who was pushing his cock into Belinda's pussy and that those moans were for him. Belinda's date withdrew his cock long enough for her to take position on her hands and knees.

"She wants it doggy style," Mitch said to himself

Mitch lost track of time as he watched them fuck, but it was his sister's louder-than-normal moaning that brought him back to the present.

"Oh, baby, I'm cumming," Belinda told her date.

"Then cum for me," he replied.

A few thrusts later, a long moan escaped Belinda's lips. Her date let out a grunt as he achieved orgasm. Once again, Mitch struggled to remain quiet as he emptied another load into his panties. The lovers took turns cleaning up in the master bath, and after one final inspection, they exited her room. When he heard the loud car start up in the driveway, he knew it was safe to exit.

He headed to the master bathroom and stepped into the shower, panties and all. He washed his cum soaked underwear as he lathered and rinsed himself off. Once dry, he returned to his room and hung his panties in the closet to dry. He would return to their hiding place once they were dry.

Mitch then flopped on his bed and burrowed under the sheets before he grabbed his thickening cock. He started pulling on his rock-hard manhood as he recalled what he had seen and heard in Belinda's room. This memory would provide him with fuel for his nightly stroke sessions for a long time.