It was 2:30 in the morning. Mark couldn't sleep peacefully because his sister was having a loud slumber party. The parents were gone for the weekend and left 23-year-old Mark in charge of the house. The parents informed Mark that his sister would be having a slumber party and wanted him to look out for them.
Mark's 18-year-old sister Emma was a bit on the nerdy side. She had freckles and wore braces in her mouth. She was a huge sci-fi geek and proud member a Star Wars convention. Even though his sister didn't have a pretty face, her body was another story. Emma had curves. She was slim with large Double D breasts and a large black-girl like booty, which jiggles and shakes when she runs or walks. Mark couldn't help but drool over his sister's incredible assets. Her 3 friends, Tina, Pam, and Samantha were pretty much the same way. Not very attractive but had large breasts and amazing asses.
Mark got up out of bed and headed over to his noisy sister's room. The door was cracked open a little bit. Mark peeked inside and saw Emma, Pam, and Tina having pillow fights. But Mark's eyes immediately zoomed in on the girls' extremely large endows, bouncing and wobbling under their pj tops.
Mark's cock started to harden instantly. Mark reached down and began rubbing his throbbing cock through his boxers.
"Hey! What are you doing?" Samantha shouted, as she busted Mark.
Emma and the other girls stop bouncing around as Samantha pushed Mark into the room.
"I caught your brother peeking in the room," said Samantha.
"You're nasty Mark," Emma exclaimed.
"Hey, hey, hey! I came to tell you girls to keep it down. I'm trying to sleep," Mark explained.
"Oh yeah... Then what is that in your pants?" asked Tina, the only Asian girl of the bunch.
Mark looked down and saw his bulging cock.
Samantha reached into the slit of his boxers and pulled out Mark's big 9-inch cock.
"Oh my god! My brother has a huge dick!" said Emma in disgust.
"I think it's kind of nice," said Samantha, as she started jerking Mark's pulsing member lightly.
Pam, the 5'2 brunette with pigtails and framed glasses, walked over to Mark's other side and fondled his hanging balls.
"Mmmm. I've never felt real balls before. They feel so...so...squishy!" Pam said with excitement in her high-pitch voice.
Mark loved the attention he was getting from his sister's busty friends. Mark's eyes wondered over both Pam and Samantha's chest. Samantha, the thickest of the four, had the biggest breasts in the room. Mark read one of her bras before and it read 44F. Pam was a gigantic E cup, while Tina was a single 36D. The buttons on Samantha's pj top were literally popping off.
"That's gross you guys," said Emma.
"Come on Emma. Live a little," said the 4'9, freckled face Tina, as she kneeled down in front of Mark and began sucking on his throbbing cockhead.
Samantha continued to stroke Mark's cock and Pam jiggled and bounced Mark's balls in her palms. Tina's mouth formed a perfect O around Mark's swollen cockhead, as her tongue probed his sensitive peehole. She could taste the pre-cum oozing from his peehole.