It was a long two weeks for Bill, especially the first few days. He and cousin Lisa had been 'kissing cousins' when they were young but it never went any further. When they entered high school that died off. Not that either had a change of heart as it were, they just never acted on it until that weekend. He'd seen his aunt naked once when he was thirteen, and the memory never left him. By the end of the first week, he was able to concentrate on his studies and made his way through it all, and felt confident about the finals.
Come Saturday morning Bill was up and gone early. It wasn't far from the dorm to the parking area, but this morning it seemed like the other side of campus. There were a few others milling about, the normal head-bob greetings exchanged, and he was finally at his car. Once the door was open, it felt like he tossed the bag into the back hopped in and started the engine in one move. It was the better part of a three hour drive to his folks at this time in the morning, and the freeway would really start to suck in thirty minutes.
Bill arrived in good time and coasted into the drive wanting to surprise his folks. Sneaking into the house, he saw his dad in his chair reading, and heard the rattle of dishes from the kitchen. His dad looked up, and seeing him opened his mouth to speak, but bill silenced him by raising a finger to his lips. Peeking around the corner, he saw mom rinsing dishes in the sink and placing them in the dishwasher. He crept up behind her and ran the tips of his fingers back and forth between her shoulders.
"Knock it off Steve.' She said turning slowly round while reaching back with her left hand and grabbing a handful of crotch. 'Bill's going to be hear any min...OH MY GOD!" She nearly jumped out of her housecoat, and jerked her hand back as if it were on fire.
"God I'm sorry! I thought you were your father. I didn't mean..."
"Mom, Mom, chill. It's O K. No big deal."
Slapping him hard on the shoulder she said; "Don't ever do that again"! Then gave him a big hug, and a kiss on the cheek. When bill turned to go into the living room, he couldn't help but utter the smart remark; 'I kind'a liked it.' Gaining him a playful slap on the other shoulder. All the while Steve was laughing his ass off. While he greeted his dad, Pam turned the dishwasher on and went to their room. Bill left a minute later to grab his bag from the car. Tossing his duffle in his room, he met his mom in the hall on the way back to the living room. She was dressed in flats, white tapered jeans and a short sleeve cotton shirt she let hang out, her wavy auburn hair cutely framing her face. He always saw her as pretty, but for some reason he felt more than that now. Shaking it off, he walked arm in arm with her to the kitchen table.
They each grabbed a cup of coffee, than sat about the table chatting about his classes, how dorm life was, finals, girlfriends, etc..etc..etc. Pam doing most of the questioning, as mothers will do. The inquisition over, Bill and his dad hung out in the back yard getting things ready for that afternoon, then Steve grabbed them each a beer and they sat talking about guy stuff till the doorbell rang. They went inside just as Pam opened the door for Sadie and her daughter Lisa, each with an overnight bag. Sadie was wearing green tennis shoes, blue and red sun shorts and polo shirt snugly fitting her figure, her shoulder length hair tied back in a ponytail. Lisa had on sandals, knee pants, and a tank top, her dark hair loose about her shoulders. Hugs and kisses passed around, Bill feeling a tightening in his crotch as he greeted his aunt and cousin, who greeted him a bit warmer than they did Pam or Steve.
"Lisa,' Pam started out, 'you can put your bag in Carols room. She is out with friends, and should be home soon. Sadie, you can sleep in Bill's room.' Then turning to her son, 'You won't mind sleeping on the couch tonight, will you?"
"Sure. No problem." He replied, flashing his aunt a quick smile and a wink.
Little did anyone else know, Sadie was going to change that. They hadn't been there ten minutes before Carol got home, and she and Lisa vanished into her room. They looked so much alike, thy could have been sisters. The day went slowly with the typical chatter until four when Steve turned on the grill, and Pam and Sadie started setting food on the table. When the stakes were coming off the grill, Bill saw his mom and Aunt Sadie by the counter having what appeared to be a deep and secret conversation. They seemed to pick it back up after the meal while they set the dishes in the dishwasher. Steve joined in briefly with the last of the dishes, glanced over his shoulder at the trio still sitting at the table, and walking into the living room pulled three twenties from his wallet on the side table. Stepping out he offered them to Bill suggesting he take the girls out to a movie or something, and have some fun. Bill felt something was up, but gladly accepted the cash, and two minutes later, they were in his car headed for the mall.
On the way there, they began talking about the polite bum's rush they got. Not that their dad never gave Bill or his sister cash before, it was the way he said things. They walked around the mall for a while, Lisa always bring up the mystery. So much so, they decided to go back home and find out what was up. Arriving back at the house Bill coasted into the drive, quietly got out of the car, and following Lisa's lead, snuck through the gate into the back yard. Creeping round the side of the house to the master bedroom where they heard music, they peeked between the gaps in the blinds. Lisa had to stifle a gasp from Carol by clamping a hand over her mouth.
The three were on the bed naked, Pam lying back grabbing her tits and pinching her nipples, while Sadie had her face buried in her sisters crotch. Steve was holding Sadie by the hips and slowly driving his cock into her from behind. Bill was a bit surprised, but not shocked at what he was seeing. Lisa didn't seem surprised at all. Carol had a hard time with the scene at first, but as they watched, she started getting turned on. Then Bill led them away from the window with a better idea toward the patio doors.
Lisa halted them at the doors, and with a nod from Bill, tells Carol about her and her mom, and Bill. Carol is shocked even further than seeing her parents and aunt having sex, then thinking about it, realizes her panties were getting wet. With a little convincing, Carol follows them into the house walking on tiptoe to the bedroom door. It stands slightly ajar, and with a gentle nudge opens just enough for them to watch through the gap. Sadie is now sitting on Pam's face holding on to the headboard, while Steve lines up and slides his cock into Pam. From their vantage point they can't see Pam's tongue working on Sadie's cunt, but they have a rather clear view of Steve's cock sliding in and out of Pam.
