I lay on the floor between Payton's legs, processing what had just happened. My mom had fucked me in the ass to two orgasms while I ate out Payton, then as my second orgasm erupted my sister had inserted a dildo into me. Even though Polly and I had been in two orgies together already, that was the first time either of us had touched the other sexually.
"You're a naughty girl for pleasing your slut sister while she's being punished," my mom had said after her own orgasm.
Her response was that she wanted to be a slut like me and give women pleasure, to which my mom had said, "You'll start with her," meaning me. They had talked for a moment afterwards, but I was too excited - and exhausted - to process what they were saying.
Finally, my mom said, "Get up, slut, unless you want to miss your chance." I got up to see my mom standing, strap-on still sticking out of her crotch. "Your sister's on the bed ready for you, hurry up before her girlfriend takes the slut back."
I guess she meant Joy, who was sitting up against the headboard where she could have clearly seen me get spitroasted by my mom and Payton. I couldn't see Polly but I began to stand. "Not yet," my mom said. "You're going to double penetrate your sister like you wanted to last week," as if there were some implication that I should understand. I just stared at her from the floor and nodded timidly, though excited on the inside. "So get over here and clean this strap-on. Unless you want to use the cheap one that won't pleasure your slutty little clit."
"Clean it?" I croaked. My voice was worn from cumming so hard.
"Yes, I just fucked you in the ass, I'm not going to let you give your sister an infection."
"Um, how?"
"You're a slut, you should know how to clean a thick dong between someone's legs."
"I-" I paused and then the next words just fell out of my mouth. "I don't want to suck cock."
My mom hummed and then her tone softened. "So my baby girl's a dyke slut. Don't worry, baby, sucking your mommy's cock doesn't make you straight." She stepped towards me and the strap-on was right in my face. "Just clean Mommy's strap-on so you can fuck your sister. It will give me so much pleasure to see you sucking it."
Dyke slut? My mind began to race. Isn't that word offensive? My mom had seemed so open in the hot tub, and she herself had been with, apparently, a lot of women. And what did she mean "doesn't make me straight?" I was straight.
Or was I? My mom had said it's about whom you think about, that was Payton and Joy. Who turns your head, only Payton ever did that. Whom you wanted to love, that was the women in the room. "Look at the facts," I said to myself. The facts were that I hadn't seriously dated any boys and my two kisses with boys were lame, but I had been kissing Payton and Joy since early in high school. We had all lost our virginities together on my eighteenth birthday, and played around a few more times before leaving for college. And now I was in my third lesbian orgy after having slept with my mom four nights in a row.
Even as I was thinking about what my mom had said, my body was moving to my mom's crotch automatically. When my mouth clamped down on the strap-on, my thoughts stopped. The shocking flavor of my own bowels slammed through me. It was... awesome. The taste was awful, but the humiliation and perversion of orally cleaning my own shit off of my mom's sex toy filled my body with an electric excitement. I slid my head up and down the smooth plastic.
My mom was also enjoying. "See baby, you like it," she said. "And you're making Mommy feel good too."
She slowly started to facefuck me. She was softly humming her pleasure. I loved that I could make her feel good. But I hated the feeling of a cock in my mouth. Maybe if it was real, I briefly thought, until a more powerful thought of how disgusting a real penis must be filled my mind. What if I was a dyke slut?
I looked up at my mom as I continued to worship her fake cock. She looked down and made eye contact with a smile. "I know you like taking care of your mommy," she said, putting a hand on the side of my head, "But your sister's waiting."
"I'm enjoying this show though," Polly said as I slid off and stood up. "Your tits are so hot, Mom."
"Thank you baby," my mom said as she removed the strap-on. "Maybe my girls can suck on them a little later."
She stepped behind me and helped me secure the strap-on. Joy and Polly stared while I tried to hold myself together from the pleasure of the inside dildo finding its place. Payton was still behind me on the floor.
"Hands and knees, Polly," my mom said once the strap-on was secure.
"No foreplay?" Polly asked. "I want to really feel my sister and I've heard she's a great kisser."
"If you want to be a slut like her, you take the sex that comes to you. Carly's wanted your ass for a week, now hands and knees."
Polly smiled and twisted into position. I wanted to feel her too, but I was in no state to protest my mom. Maybe Polly would join us this week.
"Payton, come over here and lube this for them," my mom said, reaching behind her for a toy I couldn't see. Payton got up and scampered behind me to a chair awkwardly placed to the left of the bed. It'd provide her a good view of Polly, but my mom needed to hire a new staging company. Then my mom whispered to me "Don't just stand there."
"Yes Mommy," I whimpered back.
She guided me over to Polly with a hand on my back. Again she whispered to me, "Slide that cock inside your sister, then I'll give you a butt plug to take her last virginity."
I knelt on the bed behind Polly. She was so sexy, her ass and pussy pointing at me. I put a hand on her back and caressed to her hip and thigh. Polly gave off a slight moan.
"Joy, help Carly put her cock inside your girlfriend," my mom said, anticipating that I had no idea how to put a strap-on inside someone.
"Yes Mommy," Joy said as she crawled across the bed. Mommy?
Joy took the dildo in her hand and angled me toward Polly's entrance. "Move up a little," she said to me.
"Hurry, I need it," Polly complained.
"Shut up, slut!" my mom shouted. "You get fucked when we're ready to fuck you."
"Yes MommYY," Polly replied, turning to a scream as the dildo began to slide past her folds.
Joy moved back and I slid all the way inside my sister. "Yesss," she groaned as I bottomed out.
I slowly began humping my sister and my mom handed me a grey butt plug. It was only a few inches long and somewhat thinner than any of the other toys I'd seen. "Use this for her ass," my mom said. Then she picked up a strap of my strap-on. "And pull this to tighten."
I took the butt plug, glistening with lube. Not lube, I could smell the plug. Payton had lubed it with her pussy. "It's kind of small," I said to my mom.
"You fucked someone in the ass before?" my mom asked. I shook my head no. "Then this is what you'll use. But we'll get you practice and someday maybe you'll fuck her with the red one you love."
I let out a sigh of arousal at the idea. I began thrusting harder into Polly's canal. The inner part of the strap-on was starting to work my G-spot. Joy sat next to us and then delicately ran her fingers over Polly's hanging nipple. Polly and I each sighed a release, nerves falling away. "I need to eat you again," Polly groaned.
Joy moved and positioned her legs on either side of Polly's head, with her own head propped by a pillow to see us. My sister bent down to start eating, which exposed her anus to me. I knew it was time. I pressed the plug into her pucker and hearing a moan of pleasure, not pain, I was encouraged to go deeper. "Harder, Carly!" Polly called as I neared the base.
"Little slut needs it in the ass?" I teased as I pulled back the plug and began pushing in and out of her ass at a slightly faster pace than I was fucking her pussy. The words were beautiful to my ears but felt unnatural out of my mouth. Fucking my sister was so hot, but I was the slut - degrading someone was new to me.
"Yes," Polly groaned. "I love my sister fucking me in the ass!"
I gave my hips a hard thrust to continue my double-ended assault. "OH!" she yelled.
"That's it baby," Joy breathlessly encouraged. "Just get fucked and watch me touch myself. I love touching myself to you, you made me cum so many times this week."
"Oh God," Polly gulped. "So sexy. I love it in my ass. Such a hot pussy Joy."
I was now fucking Polly as hard as I could, my body to her pussy and my arm to her ass. The movement from Joy's arm showed she was intensely frigging her clit, I tried to match the pace but I couldn't. So I shouted, "Come on you anal slut, cum for me!"