It had been over ten years since my mom had died, so when my dad started dating a woman thirty years younger than him, I didn't really mind. My parents had me when they were pretty old, so its not like Stacey is my age. My dad is seventy-two, and Stacey is forty-one, and I'm nineteen. Dad told me she used to be a swimsuit model, and I believed it. Stacey was easily the hottest forty-year-old woman I had ever seen. She was very nice to me, and was actually old enough to be my mom, so it wasn't too weird. When my dad told me she would be moving in with us, I didn't mind at all. And then my dad told me that Stacey's daughter would be moving in with us as well.
I had never met Jessica, and all I really knew about her was that she was a year older than me, and she was some kind of model. That night I went and looked her up online. I typed in her name, and the first thing that popped up was an instagram. I clicked on it, and was immediately taken aback by how hot she was.
She had a face just like her mom, with big baby blue eyes, and a perfect bone structure. She had brown hair like Stacey, but hers was long and straight instead of wavy. Stacey definitely had bigger tits, but that was only because they were fake. Jessica's tits were huge by anyone's standards, and they were still perky and round. There could be no doubt however, that the main attraction, was Jessica's ass. I can say with complete confidence, that it is the most perfect ass I have ever seen in my life. Her ass is gigantic, and muscular, and her thighs are long and thick.
I couldn't help but jerk off to pictures of Jessica that night. The thought of living with that girl, was frankly terrifying. Over the next few weeks she was all I could think about. All of my friends kept telling me how lucky I was, and how awesome it would be to live with an ass model. All I could think about was how awkward it would be, trying not to stare at your stepsister all the time.
And then the day came. Stacey moved in first, and then a week later Jessica moved in as well. The moment she walked in I felt my dick want to get hard. I had been jerking off to pictures of her for weeks, and realized that may have been a terrible mistake. She had already met my dad, and he was at work, so the homecoming mainly just consisted of Stacey and me.
"Jessica," Stacey said, after giving her daughter a hug, "this is Kyle, Kyle, Jessica."
"Its nice to finally meet you," Jessica said in a bouncy voice, "I've never had a little brother before."
"Me neither," I said awkwardly, and both women laughed. I was making sure to only look at her face, but she was so beautiful that it wasn't helping much.
"Well I had a real long flight," Jessica sighed, "so I'm gonna go take a shower."
"I'll show you where everything is," Stacey said, and they went upstairs.
The next morning I got up, and went downstairs for breakfast, and found Jessica sitting at the table in a small white shirt, and tight white panties. My eyes immediately locked onto her perfect ass, and I had to quickly move behind the counter to hide myself.
"Morning sleepy head," Jessica said with a slight southern twang that sounded quite sexy, "you sure sleep late."
"Ya, I guess I had a pretty late night," I said as I got out a cereal bowl.
"Hey is it true that you have a xg3 camera?" Jessica asked suddenly, catching me off guard.
"Uh, ya, how'd you know that," I asked.
"My mom told me," she said plainly. "Nice cameras can be really helpful in my line of work."
"Oh, ya," I said, wanting to laugh at her calling what she did work, "I guess so."
"Would you mind taking a few pictures of me today?" Jessica asked, making an extremely sexy pouty face.
"You want me to take pictures of you?" I asked, not quite sure I had really heard that.
"Well, ya," she said, "Unless you'll let me borrow your camera."
"I don't think I can let you borrow it," I said, definitely sure I wasn't going to let her touch my camera.
"That's what I figured," Jessica said quickly, "but I really want some pictures of me with that thing, so I thought maybe you would do it. I thought we could do it out by the pool. Its so nice out there."
"Ok," I said without thinking, "uh, just let me know when I guess."
"How about right now," she said, and got up, "let me go put on my suit."
I ate my breakfast nervously, waiting to see what she came out in. As I was cleaning up, she came downstairs, in a tiny black two-piece, which showed off every inch of her perfect body. I didn't want to just blatantly stare, but there wasn't really any choice. I gaped at her as she walked by, and she smiled knowingly and gave me a wink.
"Come on," she said, "lets go." I picked up my camera, and followed her outside.
"Lets start with one on the lounge chair," Jessica said, and walked over to it. She lay down on her stomach, and lifted her calves up. Somehow she managed to stick her ass up in the air without it looking intentional, and then flipped her hair over her shoulder, and looked back at me with the sexiest look I had ever seen on a woman's face.
