My younger half-sister Maddi had just turned 18 the day before and was still recovering from her wild party last night. She and several girlfriends were crashed out on the floor of her room. Good thing mom wasn't due home from her business trip until later tonight, or the crazy party would have never happened. I heard Maddi fucking in her room last night and knew some of her girlfriends had fucked other guys in other parts of the house too. It was cool though, cause I ended up with Tina, one of Maddi's high school girlfriends and had shown her how much fun eight inches of college cock can be. And she had tons of fun with it. We fucked three times and she swallowed some of my cum; not too bad for a high school girl. She had left earlier this morning and I was in the shower cleaning off our dried up sex. I heard some of Maddi's friends leaving downstairs as I walked down the upstairs hallway wearing only a towel around my waist. Maddi's door was open so I looked in to see who was left from last night. Well, Maddi and Jenny, her best friend, were the only two left and they were both naked and pulling on bikini bottoms as I stood there and watched. They saw me watching and it didn't bother them in the least. I had seen Maddi naked many times and she was very comfortable with me seeing her. Jenny too for that matter.
"Morning girls," I called in.
"Hi Big Rod," Maddi called back. She had started calling me that ever since she had seen my big hard dick several years ago after she caught me jerking off to porn in my room.
"Morning Hot Rod," said her friend Jenny, smiling at the sight of my hard body. She had started calling me that after we had ended up together at one of my frat parties last year. We have fucked several times since then and she loves my hot cock.
"You girls have fun last night?"
"Hell yeah," they both stated, as they finished pulling up their bikini bottoms. Their young titties were still naked and I eyed them both lustfully. I think they were taking their time finding their small bikinis tops and teasing my cock under my towel. It was working too, cause it was starting to grow.
"How was Tina," asked Maddi, with a big knowing smile on her face?
"She was great. A real party girl."
"I know. A real sophomore slut," said Maddi. "She reminds me of me at that age. Ha."
"Yeah, just like me too," echoed Jenny, laughing. "Though we started as freshmen. Ha."
"Ha, ain't that the truth," agreed Maddi. She had found her top and eyed me closely as I watched her pulling it on, a naughty smile on her face. My dick was rock hard now and they both saw it. They giggled to each other and finished putting their tops on. They gathered up some towels and turned to leave for the pool downstairs. I stood there in the doorway as Jenny passed, she smiled up at me and reached out to give my cock a squeeze.
"See ya Hot Rod."
Maddi brushed passed me next and she too gave my hard on a big squeeze. She lingered a bit, jacking it up and down some, and winked up at me.
"Should I call Tina and have her come back to take care of this Big Rod?"
"That'd be great, but I got some things to do. Thanks though," I told her, sounding dejected. "Hey, if Darrell stops by tell him I had to do some errands and I'll meet him and the boys later this afternoon at the field." Darrell and I played baseball and had practice at 4pm this afternoon.
"Sure thing stud. Have fun." Maddi caught up with Jenny and they went downstairs to the pool out back. I went into my room, which overlooked the pool area and heard the girls giggling through my open window about getting laid last night. I jerked of to the sight of these two hotties in thong bikinis oiling each other up and laying facedown on the lounges with their tight asses naked under the hot late morning sun.
I should probably tell you how hot these two high school seniors are. My half-sister Maddi is about 5'-6" and weighs about 105. She has a tight tanned body, 34C titties, straight dirty blonde hair, dark blue eyes, and a killer smile. Right now her sexy ass was exposed in her leopard print thong side-tie bikini, the top untied and the strings lying next to her sides. Her best friend Jenny was a little taller and weighed maybe 115. Her tight ass body was tanned too; she had 36D titties with hard pointy nipples, and had brunette hair to her shoulder blades. She was wearing a red thong bikini and she also had the top untied. She had a lower back tattoo in a complex design and she told me that if you looked closely you could make out the words "Fuck Me" in the design. Both girls had started having sex in the eighth grade and had turned into real sluts by the time they entered high school, each having fucked about a half dozen guys by the start of the first day of high school.
It should be no wonder cause my gorgeous mom was pretty wild too, my dad having divorced her six years ago after catching her with his boss and a client. She dresses sexy and does not look anything like her 37 years, having a fucking tight body that makes her look 27 instead. My friends are always coming onto to her and I've heard she has given in to a few of them, though I've never caught her...yet. She's always working during the day at an insurance company, going out with the younger girls in the office for happy hour, and partying at clubs on the weekend. She frequently brings strangers home, always younger guys, and we can hear her fucking them all night long. So having my half-sister turn into a slut too isn't so hard to imagine.
I stood there, naked and fisting a raging hard on, watching first Maddi oil up Jenny's back, legs, and ass, then Jenny oil up Maddi the same way. They both lay down on their stomachs and soaked up the sun's rays. I stroked away and was close to cumming when the door bell rang. Damn, it was probably Darrell already. I walked out into the hallway and looked down at the front door to see Darrell peering inside and several other friends behind him. I was about to call down and tell him I'd meet him later when I saw Maddi through the living room's sliding glass door hurrying inside holding her untied top to her boobs to answer the doorbell.
She smiled when she saw it was Darrell and waved with one hand at the boys on the porch, trying her best not to lose her top with the other one. She had met Darrell a few times before, but had never hung out with us. I should tell you Darrell is a 20 year old black guy and his 4 friends were all from our college and black too. Shit, Maddi didn't care who saw her nearly naked. She opened the door and said hello to the gang standing there, oogling her hard body on display.
"Hi boys, what's up," she asked, smiling at all the college boys?
"Is Rod home Maddi? We're supposed to pick him up so we can hang out before practice later," asked Darrell, as his eyes wandering down to her small thong bottoms. He smiled and licked his lips.
