Emily and Carla sat on the front porch sipping iced tea and watching Billy mow the lawn. Watching Billy work up a sweat was quickly becoming a favorite pastime of the two women. At thirty seven, Emily has had a marked increase in her sex drive. She was basically out of control, and Billy was only too happy to administer to her needs. Without even realizing it, Emily had slipped a hand down her shorts and was pressing two of her fingers against her clit as she watched her stepson work.
Carla glanced down and saw what her mother was up to. She giggled and rolled her eyes.
"Mom, you really are unbelievable," she said.
"What?"
Carla raised her eyebrow and made a show of looking down at what Emily was doing with her hand.
"Oh. I didn't even realize I was doing that," giggled Emily.
"He really has turned you into a complete slut, hasn't he mom?"
Emily smiled at her daughter. "Listen to the pot calling the kettle black. You were so loud begging to be fucked last night that the neighbors must have called the police."
"That was a problem because we woke you?"
"No honey. That was a problem because you didn't invite me to join you," admonished Emily.
In the months since Billy had first fucked Emily, the relationships between the three of them had morphed completely. Both of the women had fallen in love with Billy, and he with them. The women loved each other as well. Emily no longer thought of Billy as a boy. She saw him as a man, and he had taken over the household. No major decisions were made without her first consulting with Billy. They engaged in some light bondage and discipline, and it thrilled Emily beyond words to have her stepson spank her ass with his bare hand. Billy ruled the roost, and the two women could not be more satisfied with that.
The more Emily watched Billy work as she pressed her fingers against her clit, the needier she became. Watching her brother was having a similar effect on Carla, and she started to rub her own pussy through her shorts. The women were cut short when Billy stopped the mower and walked towards the porch.
"It's hot out here. Would one of you beautiful ladies get me a glass of iced tea," asked Billy.
Carla got out of her seat and walked toward the door. "Sure little brother," she said as she glanced over her shoulder at him. She wiggled her ass flirtatiously as she walked into the house.
Billy sat on the arm of Emily's chair as he waited for Carla.
"You are just a joy to watch," Emily said hoarsely. She reached her face up to his neck and ran her tongue from his collar bone to his ear, tasting his salty sweat and lightly biting his earlobe. "I was touching myself while I watched you, and now I'm all wet and throbbing. You want to take a break, honey?"
Billy's reply was to grab Emily by the hair and tilt her head back, kissing her deeply. By the time Carla came out with Billy's drink, Emily was topless and sitting on Billy's lap.
"I can't leave you two alone for a second, can I," said Carla as she sat down and watched them kiss and fondle each other.
Emily was purring and grinding herself against the bulge in Billy's shorts. She wanted more, so she got up and started for the door.
"Time to go inside for a while."
Billy and Carla grabbed each other's hand and followed Emily into the house. The two women worked together to undo Billy's shorts and pull them down and off. He stood there naked except for his sneakers. Emily was on her knees with his cock in her mouth, and Carla stood beside him kissing him and running her hands all over his body. After a few minutes, the women switched positions. Emily was kissing Billy with extra fervor.
"What's gotten into you today, mom?"
"I think I'm going to get my period. That always makes me horny as hell. God, I need your cock inside me, Billy," said Emily. "I need you to fuck my brains out. I've had enough foreplay."
Carla pulled Billy's cock from her mouth and looked up at her mother with a raised eyebrow. "Wow mom. You are unbelievable today. It's like your cunt is on fire," she teased.
"It is, Carla. Let me have him for a couple minutes, honey. You go after me."
"Sure mom. I'll sit back and watch. I love watching Billy fuck."
Billy got onto the floor flat on his back. He pulled down a pillow from the couch and put it under his head. He watched as Emily straddled him and reached down, guiding his big cock into her bare cunt. Emily closed her eyes and sank all the way down on it, resting a hand on her abdomen as if she could feel him inside her. She loved how deep Billy could fill her. She opened her eyes and looked down at her stepson. She was his, and his alone. Emily started riding Billy, biting her bottom lip and staring into his eyes.
"God Billy. When you fill me like this...I swear...I wish you were fucking me pregnant. I'm swollen and ripe, and...ohhhh. Fuck." Just talking about it made Emily lean forward and cum, kissing Billy wildly. Billy had her by the hair and was kissing her back, and he was thrusting hard up inside her. Carla was leaning against the couch with her legs spread rubbing her clit as she watched.
"Fuck. That would be so hot, Billy. Watching you fuck mom and getting her pregnant. Knowing that you knocked up my mom with that big fat cock of yours. Knowing that you own her. And me. I would be next Billy. Both of us. Pregnant by you. Your bitches. Your..."Carla trailed off as her orgasm hit. She threw her head back and squirmed around, moaning loudly.
Billy heard it all and took it all in, thrusting harder and deeper into Emily until he finally succumbed and filled her with stream after stream of his cum, grunting and moaning the entire time. Emily collapsed onto his chest, petting his face and neck with her hand. She stayed there until his cock softened and slipped out of her, finally moving with a great deal of reluctance.
Carla crawled over and took Billy's cock into her mouth. She liked to start sucking him when he was not yet hard, so she could feel all of him in her mouth before he fully stiffened and would no longer fit. She could taste her mother on Billy's cock, and she liked it. It didn't take Billy long to become fully erect again. Carla rolled onto her back, and Billy got between her legs. He pulled her legs up onto his shoulders and filled his sister's cunt with his meat.
"Fuck me good, little brother. Fuck your slut of a sister, Billy. Tame me with your cock. Please. I need your taming," Carla begged.
Billy was pounding into his sister. She breathlessly whispered "fuck me" with every stroke of his cock until she could no longer speak. She was clinging onto him for dear life, and when Billy thrust into her and came, she too came wildly, biting into his shoulder, scratching his back and pulling his hair.
The three of them wrapped around each other and dozed for a while, with Billy awakening first midafternoon. He got up and headed into the bathroom to pee. When he came back out, Carla was sitting on the couch and Emily was in the kitchen, starting to make lunch for them. Billy loved how they looked after he had fucked them. He thought there was nothing sexier than their hair all messed up and their faces all red and chafed by his beard.
Emily brought a tray of sandwiches and three glasses of iced tea over to the couch. Billy grabbed a roast beef wrap and took a bite, looking at his mother and sister.
"That was pretty damned hot," he said.
