Matt came home tired after an exhausting game of basketball. He lived alone with his sister in their apartment. Drenched in sweat, he took a relaxing shower. After drying off, Matt found wrapped a towel around him and went into his bedroom to get dressed. Dropping the towel on the floor, Matt opened his dresser and retrieved a pair of plaid boxer shorts. Suddenly, there was a knock at his door.
"Just a second", Matt stammered as he quickly pulled on his boxers.
"OK, you can come in."
Katie, his twin sister, entered the room. She looked at Matt, and a rather odd expression came over her face.
Katie gazed at Matt's rather lean body frame. She touched his abs with her hand briefly, and then pulled it away.
"Wow, the ladies must really like you" she remarked nervously. Matt was a little puzzled. Katie seemed pretty nervous, and had been acting nicer towards him these past few days than she usually did. Matt and Katie had always been closer than most siblings are, but Katie had recently started to become very sweet towards Matt.
"Well... anyway... I just came in here to get my cell phone. I left it in here when you were helping me with my homework. Hey, if you don't mind, can I play basketball with you sometime? I know I'm not really good, but if you have nothing to do, maybe we can do that."
Matt smiled. "Sure, how about tomorrow?" Much to his surprise, Katie hugged him tightly, her fingers stroking his bare back. Much to Matt's embarrassment, he suddenly began to get an erection. He hoped Katie wouldn't notice. Unfortunately, he was wearing boxers, and not jeans. A few seconds later, Katie broke her embrace and took a step back. Matt frantically tried to turn around and pretend to be doing something. Unfortunately, his penis popped out of the hole in the front of his boxers. Katie glanced down and smiled.
"I guess you will be showing me some moves tomorrow... on the basketball court." Katie left the room.
Matt was red with embarrassment. What really puzzled him though was Katie's reaction. He tried not to think about it that night. The next day, Matt took Katie to the basketball court in their neighborhood. He showed her some of his moves. As they were playing, he noticed that Katie was playing a very aggressive defense. Anywhere he went, she was right there on him, a few times even pressing her ass up against him. Matt didn't mind. It didn't take long for the game to become very physical. Matt and Katie began bumping up against each other more frequently. Both siblings were aware of this, but neither gave any indication of this awareness.
After about an hour, Matt and Katie were drenched in sweat and out of breath. Katie grabbed her brother's hand and suggested that they go back inside. Once they were back in the apartment, Matt said he needed a shower and asked Katie if she wanted to go before or after him. Katie turned around to face Matt. Her eyes were trying to say something, but her mouth just wasn't forming the words. After a few seconds of silence, she placed her hands on his sweaty shoulders. Matt was puzzled but he remained silent. Katie quickly glanced into Matt's eyes for a brief second, and then without warning, she leaned in and kissed him right on the lips. It was a tender kiss that took both of them by surprise.
