Jacey entered the code in the electronic lock, and after fumbling a couple of times was finally able to open the front door. She entered the dark, unfamiliar house and let her eyes adjust. As the faint, indirect lighting shared its secrets she realized she was on a small landing with a game room on her left and a hallway, probably to bedrooms, on her right. A stairway descended to a 2-story den below with tall glass windows that appeared to allow spectacular views of the lake during the day. Tonight she could only see a large dark area surrounded by occasional far-off points of light. In closer to the house was a small, flickering light that appeared to be from a fire or fire pit, but everything else on the deck was dark.
As she descended the stairs she was excited that Mark and Jenn had rented the lake house for the month and invited the extended family to enjoy an extended stay out of the city. She hadn't been able to make the family vacation the past two years since she and her mom moved away, and she was excited to surprise everyone. She wasn't sure if the darkness or the quiet was more surprising - usually when everyone was together chaos, noise, and fun went into the late hours every night. It wasn't even 11:00 p.m., so she didn't think everyone was asleep. Still, she was careful to not wake anyone just in case.
When she got to the bottom of the stairs she could better see the faint light from the fire pit barely illuminating two people on the deck. She sat her back pack down on the couch and was able to see uncle Mark and Aunt Jenn. They weren't her biological relatives, but Jenn worked with Jacey's mom, Cassy, when Cassy first got out of college. She was a pregnant teacher at the same time Jenn was a pregnant teacher, and they bonded during that time and were great friends for years. Jacey was born a few months before Jenn's twins, and all three were raised as cousins to Jenn's other nieces and nephews. Jacey was in high school when Cassy met Tony and he moved in with them. He didn't like the extended family and eventually made Cassy move away. Jacey fought to stay close but hadn't been able to make the family vacations the past two years. This year her mom and Tony went to Vegas, so Jacey decided to surprise the family and had a friend drive her to the lake.
Before Jacey could open the door to surprise them she heard a woman's muffled voice coming through the glass.
"Oh fuck, Mark - that feels amazing..."
Even though Jacey was across the room from the glass separating them, she could now see Jenn was laying on the chase lounge with Mark between her legs. Her eyes were fully adjusted to the semi-darkness, and the stars, moon, and fire pit provided enough light she could now see they were naked and having sex.
"Don't stop, baby - you're going to make me cum!" Jenn moaned a little louder. "Oh my gawd, I'm going to cum."
Jacey could see Mark's head moving up and down between Jenn's legs while Jenn's body writhed with pleasure. She thought about turning on the lights so they would know she was here and could see what they were doing, but they really seemed to be enjoying themselves, and interrupting them would definitely end their evening. Besides, she had never watched people having sex.
Jacey was a late bloomer and didn't start having sex until well after her 18th birthday, and didn't lose her virginity until after she was 19. Now 20, she had been sexually active for almost a year now. Unfortunately, none of the guys she'd been with ever did to her what Mark was doing to Jenn - they were happy to get inside her, and when they learned she was on the pill they were even happier to cum inside her. She enjoyed the way it felt for the couple of minutes before they finished, but she had never moaned like that.
"I'm cumming," Jenn screamed so loud Jacey heard it perfectly clear. "Oh yeah, I'm cumming..." she continued as Mark's head moved frantically between her legs.
Jacey's very limited sex life changed almost a year ago when Cassy caught two boys in her room and called the boys' parents. One of the boy's was the preacher's son so Jacey had to speak with older women at church about how sex before marriage could ruin her life. These women, well past their sexual prime, told her
- sex was for men to feel like men
- Sex was to make babies
- only bad girls enjoyed it, and only really bad girls let guys perform oral on them
- if you told men 'no' they wouldn't love you. Some may still take the sex, and that was their right.
Jacey had never seen a woman cum before other than on videos where she was told they faked it. Jenn's moans and passionate screams seemed pretty real, so maybe this was one more thing she didn't really understand. Also, she couldn't believe how horny she was watching her not-really aunt and uncle having sex.
"Don't stop - I think I can cum again," Jenn panted as she held Mark's head tightly between her legs.
Mark grabbed Jenn's hips and pulled her body tightly to his mouth. In less than a minute Jenn was again bucking as another delicious orgasm raced through her body. Her moans and screams of pleasure added to the sexual excitement Jacey was feeling.
"Now fuck me!" Jenn commanded.
Mark let her lower her legs. Kneeling between them it was easy to put the head of his erection at the opening to her very wet pussy. With an intense thrust he was inside her.
"Oh, yeah that feels fucking amazing," Jacey heard Jenn moan. "Fuck me `til I cum again."
"I'm going to make you cum, then I'm going to cum in your hot pussy," Mark moaned trying to mimic Jenn's dirty talk. "And then I'm going to lick the cum out..."
Jacey was so turned on by watching and listening to them that she had forgotten about surprising them. The surprise now would be when they came in and found her in the den. For now, this was the hottest show she had ever seen, and she was hornier than she'd ever been in her life.
Jacey never once imagined Mark being someone who could make Jenn scream in pleasure. He was a dad, a programmer, loved his family, and always attended family events. He paid for her dinner when her mom wouldn't. He taught her to drive and loaned her his car for her driver test. She had caught him looking at Mom's butts a few times when the family was out at a restaurant or on vacation, but that was as close as she had ever imagined him as a sexual being. In her mind he had been her not-really-cousins' dad. Did dads really know how to satisfy women and make them scream in pleasure?
Even Jenn, with her confident personality, big smile, seductive curves, big boobs, nice clothes, and I'm-not-going-to-take-any-shit-from-you aura, Jacey had never imagined as someone who demanded to cum while talking dirty. Most of the women in the extended family didn't know if they wanted peas or carrots until they prayed about it. Jenn was different - she was the leader of the family, and no one crossed her. She told Jacey when she messed up but then also helped her correct the problem. Where Jacey's mom was mostly worthless, Jenn was a steady influence. She was also the woman Jacey wanted to be when she was older. And somehow she was even more amazing now that Jacey knew she loved sex.
The harder Mark fucked, the more Jenn moaned. Jacey could hear most of what she screamed through the windows, but much was just garbled, pleasurable moans. She had been with a couple of guys, but those were quick endings to somewhat-pleasurable physical encounters. It felt good when they were in her, but it was over very quickly. Even though she had to be quiet to not wake her mom, she had never gotten close to wanting to scream how good it was. Now she was pretty sure Jenn was about to cum again, especially when Jenn screamed she was cumming. Even Mark, who had been mostly quiet while Jacey watched, grunted and moaned as she assumed he was filling Jenn with his cum. Then they were still for a moment, and like he promised, Mark again buried his face between Jenn's long, shapely legs.
"You naughty boy," she moaned as he licked his own cum from her hot wetness. "I love it when you clean up... Don't you dare leave a drop in there."
Mark loved it when she told him what to do, and Jacey saw his head moving even faster as he aggressively licked Jenn's pussy. After he was sure he had gotten every last drop he pulled her up from the lounge and passionately kissed her.