Ashley

The door slowly opened and Mark was convinced that he had died and gone to heaven. Stepping into the room was his sister. She was wearing a sexy velvet Santa top with fluffy white trim. The black leather belt hugged her hourglass figure. The top stopped at her hips and rested on her plump ass. (http://imgur.com/a/KF3El) Her bottom half sported a set of white, lace stockings and garter belt. Her ensemble was however lacking panties and whenever she took a step, the hem of her top flipped up and gave her brother a flashing glance at her shaved cunt. (http://imgur.com/wXusWPn) Mark would swear he felt lightheaded as the blood rushed to his cock in response to his sisters entrance.

From his position on the bed, Mark watched Ashley stride into the room. His cock, tenting in the loose fabric of his athletic shorts, was the subject of his sister's gaze. As she strode towards his bed in a low, raspy voice that only pumped more blood to his painfully erect cock, Ashley said, "Ho...ho...ho." Mark's mouth had become dry and he struggled to say something. Arriving at the foot of his bed, Ashley stared into her brother's eyes and said, "I've been a naughty girl this year, Santa."

Finally finding his voice, Mark asked, "What do you mean?"

Ashley crawled up onto the bed and slowly made her way towards him. "I mean, I've been having some dirty thoughts about my little brother, Santa." She replied. "Thoughts a sister shouldn't be having about her brother, but I just can't help it."

Mark could hardly believe what he was hearing. He knew that his sister had these thoughts about him but to hear her say it out loud astonished him. Crawling up the bed she made her way to him. She made her way up his body, rubbing her cheek against his fabric covered tent. Kissing the tip through the shorts, Ashley looked up at her younger brother and gave him a wink. As she continued her way up his body she lifted the hem of his t-shirt and gave his chest and stomach a few kisses. Finally, she his face and stared into his eyes. Mark felt her rub her stomach against his cock and lifted her hips until the bulge in his pants was nestled up against her pussy lips.

Ashley gave her brother a few kisses on each cheek before moving to his right ear and nibbling on his earlobe. Mark was in his own little world of ecstasy but was caught off guard when he heard his sister whisper in his ear, "Of course, I'm not the only one who's on the naughty list this year."

"What do you mean?" Mark asked.

"Oh don't play dumb," Ashley replied in a mocking tone, "you in the shower, the night we watched the movie, and even when you came back from your date."

Seeing the look on Mark's face caused Ashley to laugh. "Yeah, I was awake the whole time you were playing with my tits and rubbing this nice cock against my face. The cum you left tasted pretty good."

Mark's face went a deep red. "Look Ashley, we need to talk about this-" Mark began to say before being cut off.

"What's there to talk about?" his sister asked. "You want something and I want something. We clearly have a mutual interest." Leaning back down to whisper in his ear, Ashley said "So please, Mark...I'm begging you to fuck me!"

That was all Mark needed to hear to awaken the fire within him.