My Step Sister Mandy

My step sister Mandy part 4 (Mandy's sleepover)

Well everyone it's been a minute, so I figured I'd catch everyone up on a few things. So me and Mandy's parents are still none the wiser about me fucking the shit out of my sexy step sister on the regular. As for our neighbor Mrs. Evans, things took a bit of a nose dive after me and Mandy hooked up with her. See, she started getting more promiscuous when her husband left for work as she started fucking her pool guy. All it took was her husband coming home early to see her riding the pool boy and the two got divorced, however she told us she's felt freed as she's started posting sexy photos on onlyfans and making a killing from it. Now back from where we left off, Mandy's new friend Gigi got very involved with me and Mandy's secret fun and now regularly comes over to hang out, spend the night, and whenever possible drain my balls dry, and lick my step sister's pussy until she can hardly walk. Life in my house has been great. Which is why I'm happy I get to write to you all about my last big hooray!

It was a nice spring Friday as I was at home putting away my winter clothes since finally the cold weather had stopped. I was looking forward to the warmer spring and summer weather as I had plans to travel, saving up money over the winter months to afford tickets and to get my passport. The one fun thing that happened over the winter time was around Christmas when me, Mandy, and Gigi went next door to Lacey's house for a bit of Christmas fun. We spent the whole day naked just fucking around the house. Best Christmas I'd ever had. Wish I could have written more about that but so much happened it's kind of a blur. I never thought my drained balls would recover from all that.

I was excited for today as well because Mandy was having a sleepover with Gigi and a new friend they'd made recently. Mandy told me about how she and Gigi met her while they were out at a club together, she said she was wild and very funny. That night when she posted a group selfie on her instagram, from the moment I saw the three of them together I knew I needed to get inside her new friend.

"Who is that on the end?" I messaged Mandy.

I waited patiently as I saw the response bubble loading up until finally she replied "Her name's Jacy"

I clicked on her name from where Mandy tagged her in the photo, and all night I was stroking my cock until I exploded looking at her best thirst trap pictures.

With Jacy coming over for the first time, I was a bit nervous seeing as not every girl would be interested in me, but it was worth a shot. Along with the sleepover taking place, our parents would be out of the house as well. They were going on a double date along with Lacey and a guy she'd recently been talking to. Seeing as there would be no family dinner tonight it was up to me to make my own food. I was feeling a bit lazy and didn't want to cook so I decided to order a couple pizzas, one for me and a few for Mandy and her friends.

I sat on the couch watching TV until I heard a knock at the door. I got up and pulled out my wallet to pay the delivery person for my pizza, but when I opened the door I wasn't met with my delicious dinner delivery, but someone who made my mouth water just as much.

"Hey step bro, what's up?" Mandy said with a smirk as she stood there with Gigi and Jacy.

"Hey Mandy... why'd you knock?" I asked.

"I forgot my house key and the garage code keypad isn't working" Mandy said as she started to walk inside, followed by Gigi who gave me a smirk and a wink, and finally I was face to face with the Jacy for the first time.

"Hi... you must be Jacy...I'm Mandy's brother, Mark," I said, trying my best not to look at her cleavage.

"Nice to meet you, Mark," Jacy said as she stepped past me.

My heart was racing as I gazed at all three girls' asses as they walked into the kitchen. I was so fixated on them that I didn't even hear the delivery driver pull up to the house and walk up to the door next to me.

"Hey sir. Here's your order.." The guy said.

I was so flustered I nearly handed him a $1 to pay for everything. I took the pizza's inside and welcomed the girls to a slice. As they ate we all made small talk about our upcoming summer plans until our parents got home to change for their double date. Somewhere in the conversation Mandy thought it was a good idea to make cookies using a recipe that Lacey had given to us.

We waved goodbye to our parents as they took off for the evening as we got set to make the cookies. Before we began we realized we were missing icing, so I volunteered to go to the store to get some. As I was leaving, Gigi said she wanted to come with me to get some stuff for herself, so we took off to the store. As I was driving, I felt Gigi's hand slowly running down my stomach to my basketball shorts waistband. I was smiling ear to ear as she giggled.

"So... Mandy told me Jacy got your attention..." Gigi said as she rubbed my crotch, which instantly gave me a hard on.

I nodded "I mean yeah, she's fucking hot!"

Gigi giggled as she leaned in close to my ear.

"Well I should tell you how I met her at the club... I was in the bathroom fixing my makeup when she came out of a stall with another girl. After the other girl left, Jacy said I had a nice ass and I said she had nice tits..... She asked to use my lipstick, and afterwards we started making out and fingering each other for a bit..."

My eyes opened wide and my grip on the steering wheel got tight.

"Fuck... what a start to a friendship, hu?" I joked.

Gigi giggled as she took her hand off my crotch as we arrived at the store. We got our items and headed back to the house, all the drive back getting some nice head from Gigi. When we went back into the kitchen, I was stunned at the sight of Mandy and Jacy in tank tops and underwear as they were putting cookies on the pans.

"Just in time. We're about to throw this next batch into the oven. The first one got burnt since we were upstairs changing..." Mandy explained.

Gigi giggled "I'll be right back. I'm gonna change too!" as she took off upstairs.

Jacy looked at me and joked "Are you gonna change into your pajamas too?"

I laughed and shook my head "Nah, I'll leave that to the sleepover crew"

I started helping make more cookies alongside Jacy, all of a sudden we heard Mandy randomly say out loud "DAMN!"

We turned to see what she was looking at, and instantly we understood her response as Gigi had returned in her own pajamas, if you could call it that. Her white shirt she'd been wearing, along with black underwear that were being swallowed by her giant cheeks.

"Fuck Gigi, you sleep in that?" Jacy asked.

Gigi smirked and shrugged "Something. Those jeans have been really tight today so I needed to let my legs breath"

"Suuuuure, let your leeeeegs breathe" Mandy teased as she booty bumped Gigi, causing all of us to laugh about it.

As we continued making cookies I would occasionally get a look at one of the girls amazing asses, and upon seeing this Mandy teased me at one point, pretending to move past me while deliberately rubbing her ass against my crotch while Jacy wasn't looking. After the cookies were finished, Jacy got the idea for us to play "Just dance" via watching youtube videos of the dances since we didn't have the actual game. I joined in for one or two dances, but Mandy asked if I would rather record videos of them dancing to post to their social media. I had no issues with being the cameraman to my sexy step sister and her friends dancing around in their underwear.

After a little while longer I figured it was time to get back to my work in my room, planning out my trip and booking hotel rooms. As I was on my computer I heard the music stop downstairs and the sound of the girls walking into Mandy's room. A few minutes later I got a text from Mandy saying "Come here..."

My cock started throbbing as I walked down the hall to her door. As I turned the knob and opened it, my legs felt weak as I saw all three girls sitting on Mandy's bed.

"What's going on here?" I asked, thinking I had just walked into a sexual trap, however my wet dream was dashed as I saw a stack of uno cards sitting on the bed.

Gigi then shrugged and confessed "We're just bored, we wanted to do some like truth or dare spin the bottle shit, and we needed another person so it's fair"

I shrugged "Okay, that sounds fun. I'm in"

The girls all climbed onto the floor as we got in a circle with an empty pepsi bottle in the middle.

"Alright so who goes first?" I asked.

Mandy shrugged and handed the bottle to me "You can go first"

I took hold of it, sitting it on the floor and winding up for a big spin. As I let go I looked around at the three girls, contemplating what to do when it landed on one of them. Suddenly I saw all of them look up at me, and as I looked at the bottle I saw it had landed on Jacy.

I smiled back at her as Gigi and Mandy giggled to each other.

"Well well Mark.... What are you waiting for? Kiss her!" Gigi teased.

Jacy giggled too a bit before biting her bottom lip and giving me those distinguishable "fuck me" eyes. We leaned in and as our lips touched I could hear Mandy and Gigi's giggling turn to sounds of surprise and almost arousal. Jacy slipped her tongue into my mouth and I was about to put my hand on her cheek until we heard the sound of a camera clicking. We pulled back to see Gigi holding her phone at us.

"Oh my God, Gigi!" Jacy said before slapping Gigi's leg playfully.

"What?! Gotta save a picture for the wedding album of your first kiss haha"

My face turned bright red as everyone was laughing once again about it, but for a first kiss with Jacy I will say it was extremely hot. Next up was Mandy, who took the bottle, and spun it, landing on herself, to which we all laughed as she started kissing her arms as she flexed. She then took the bottle again to give an actual spin, and we all watched as the bottle went around and around for what felt like forever, and just as I thought it was about to land on Jacy, the bottle went a bit further before stopping.... On me.

My face was now bright red as I flashed a glance at Mandy and Gigi. Jacy was the only one giggling about the situation as Mandy nervously bit her bottom lip.

Jacy shrugged "Alright Mandy, spin again"

Then Mandy's look of nervousness turned to pride and seduction as she looked from me to Jacy and said in a sexy tone "Why would I wanna do that?"

Mandy then leaned up onto her knees as she tugged on my shirt towards her. I instinctively stuck my tongue in her mouth as we started making out right in front of Jacy. The secret was out. We heard an initial gasp followed by a "What the fuck?"

As we broke the kiss, we turned to look at Jacy's reaction. At first it was confusion, then a smirk formed on her face.

"Did you actually just make out with your step brother?!" Jacy asked.

Gigi giggled and admitted "Oh they've done more than that...."

Jacy's eyes opened wide from Gigi's words as she looked at me and Mandy.

"Wait wait wait... you've been FUCKING YOUR STEP BROTHER!"

Mandy and I nodded as Mandy started rubbing my crotch. I was nervous about the whole situation, but Jacy's reaction not being to run out of the room was a good sign.

Jacy then thought for a moment before she looked back at Mandy.

"So wait... that guy you were telling me about. The one who's cock you showed me the picture of.... That's.... Him?!" Jacy asked as she was putting the puzzle pieces together.

Mandy nodded "Yep. And you know what... it looks even bigger in person..."

Mandy then yanked my pants down, causing my cock to pop out. Gigi slid closer to Jacy as the two of them watched Mandy start to suck my cock. It was such a tone shift from a few minutes earlier just spinning a bottle. Gigi started squeezing Jacy's tits and whispering something into her ear, and whatever it was seemed to make Jacy smile more and more as she watched Mandy suck my cock while also stripping out of her bottoms, exposing her ass and pussy.

Feeling the tingling sensation of Mandy's mouth on my cock with the visual of Gigi rubbing Jacy's pussy while whispering into her ear made my whole body shiver. I saw Jacy and Gigi looking at Mandy's ass, and Gigi said something that made Jacy giggle. I decided to play along as I reached forward and gave Mandy's ass a spank, letting the girls see it jiggle.

"Mmmmh fuck that's hot.... Ugh I feel like I'm dreaming..." Jacy said, her words sounding like her mouth was watering. I don't blame her.

I replied " That's how I felt my first time with Mandy too.."

Mandy then pulled her mouth off and stood to her feet as I stood up with her. She gently grabbed hold of my cock and began walking over to the bed, kicking her bottoms to the side as she glanced back at Gigi and Jacy on the floor.

"Well Jacy, if you wanna get a taste, get up on the bed before I drain him. He hasn't fucked me or Gigi in like 2 weeks so these balls are nice and full!"

With that, Jacy and Gigi scrambled to their feet and dove onto the bed. I stood at the end of it as Mandy stood next to me, wiggling my cock around like a toy to Gigi and Jacy. I could see Jacy's eyes light up with excitement as she took her first lick up and down my balls, glancing up at me.

"Oh my God... fuck, you weren't kidding...He's so fucking big!" Jacy said as she took my cock into her mouth for the first time.

As I was looking down at Jacy sucking my cock and Gigi worshiping my balls, I felt Mandy's pointer finger on my chin, pulling me to face her. She wrapped her arm around my side and pressed herself close to me as we started kissing. Honestly despite the oral pleasure from Jacy and Gigi, at this time all I could focus on was the feeling of Mandy's perfect lips on mine. As we broke the kiss we leaned foreheads against each other as I whispered to her "You're amazing"

Mandy smiled as she held my hand and whispered "I love you, step bro" with a little wink afterwards to tease me because in recent months whenever we were about to fuck, she's call to me saying "Ooooh step bro, can you come here for a minute?"

I chuckled and replied back "I love you too, Mandy"

Jacy and Gigi giggled as they looked up at us. Jacy then suggested "Well you two love birds, come lay down here where it's more comfortable..."

Jacy and Gigi moved aside as Mandy turned me around before giving me a playful shove backwards onto the bed. I was quickly swarmed by the three beautiful women as they kissed me all over, I felt one of them suck on my toe, which to this day I have no clue who did it as my eyes were closed, just feeling the wet sensations.

I pulled myself up to have my head rest on the pillow as all three of them started sucking and licking my cock and balls, all trading positions back and forth.

It felt amazing and was going well for a bit until suddenly among the feeling of the girls sucking and licking, I heard a door downstairs shut loudly. Everyone froze as me and Mandy looked at each other. Suddenly we heard the sound of our parents talking, with our dad sounding angry.

I jumped from the bed and began grabbing my clothes off the floor, and tossing the girls their clothes as I wondered what to do. I had my clothes in my hand as was ready to run back to my room, but as I stood in front of Mandy's door I heard our parents knock on it from the other side.

"Mandy, are you girls decent?" My mom asked.

I then rushed and stood next to the wall as the door slowly opened, blocking me from their sight.

"Hey girls" Mandy's father said in a pretend cheerful voice.

"Hey dad, you two are home early... how was dinner?" Mandy asked as her, Gigi, and Jacy had gotten their shirts back on and were hiding their naked bottom halves under the blankets on the bed.

Her dad shrugged but looked annoyed as my mother answered "It was fine..."

What I found out later finally put into context why Mandy's father was so angry and why my mother wasn't going into detail about the evening. Turns out when they went to dinner with Lacey and her date, Lacey tried to jerk the guy off under the table and got caught, making a big scene in the restaurant.

My mother continued "... Hey where's your brother? His car is parked out front but he's not in his room..."

Mandy shrugged and replied "Maybe he went for a walk, or maybe he had a friend pick him up"

Our parents bought these possibilities as they responded "Alright, well we just wanted to check up on you girls. Yell if you need anything, we'll hear you down the hall"

As they shut the door I held my finger to my lips, signaling to the girls to stay quiet until I heard the sound of their bedroom door shut. Finally I let out a big breath of relief as I let my clothes hit the floor. Jacy and Gigi started giggling as I walked back over to the bed.

"Holy shit, I was trying so hard not to laugh," Gigi admitted.

"You are so lucky Mandy's dad didn't go to turn off the light switch. You'd be dead!" Jacy said, making me remember where I was standing was exactly where the light switch was.

We all joined into a little chuckle until I stepped in and suggested "Look I think we're all a bit stressed out at what just happened, so I suggest we get back to our regularly scheduled activities and relieve some of that stress" I finished with as I leaned over and kissed Mandy again, falling back onto the bed amongst the three horny vixens. I helped stripping their tops off once again, followed by me shoving my face between their tits and kissing all over, especially to Jacy as I had to show her a good time for her first time with me.

As Mandy and Gigi sucked my cock back to full stiffness, I looked at Jacy and smirked.

"How about you take it for a ride, baby?"

Jacy nodded as she gave me one last kiss before crawling up and climbing over top of my body, slowly grinding her pussy against my cock.

I then looked over at Gigi who was kissing Mandy as I spanked her ass to get her attention.

"And for you Gigi, I think I've got a better place for you to sit"

Gigi looked at Mandy and giggled as she knew exactly what I meant. Gigi climbed over my face and slowly lowered herself down onto me, covering my face with her perfect thighs, ass, and pussy.

My face was covered to the point I couldn't see the moment Jacy first slipped my cock into her pussy, but as Mandy described later on to me, her eyes went cross eyed as she gasped, twitched a bit as she started sitting further down onto it, and her lip was trembling by how big she said it was.

I could feel her starting to bounce up and down on me slowly as I started licking Gigi's underside from clit to asshole. Meanwhile Mandy stood off to the side seeing her two friends enjoying her step brother's body as she had so many times before.

I could hear the muffled sounds of Jacy's moaning, though Mandy put a stop to them getting too loud as she pulled Jacy and Gigi's faces together for the low of them to make out as they rode on top of me for a while.

I started lapping up Gigi's clit even more, feeling her dig her fingernails into my skin, signaling I was close to making her cum. I could feel her thighs getting more and more tight around me until finally her sharp fingernails pulled out of me and she leaned back, catching her breath as she came all over my face, and I licked up whatever I could that didn't leak down onto the bed sheets.

As Gigi climbed off my face I got my first look at Jacy riding my cock and she was hot, literally. Her body had a nice sweat going as she moved her body back and forth on me.

"Alright Jacy, my turn to have some of this cock..." Gigi said as she tapped Jacy on the shoulder.

Jacy climbed off, falling on top of Mandy as the two started making out as Gigi was getting ready to climb on my cock.

"Wait wait Gigi.." I said "Before I fuck you.... Show Jacy how deep you can suck me.." I said with a smile on my face.