My Step Sister Mandy

My Step sister Mandy part 3 (Mandy's new friend)

After the most insane week of my life, fucking my step sister and then the two of us getting to fuck our hot MILF neighbor, things became very chill for a while. I was focused on finding a high paying job so I could move out and into my own house, and Mandy had finally found a job, working at the sex store that me and her had visited previously.

One day I was sitting on the couch watching TV when I heard the front door open and shut, it was Mandy, and I could hear her talking to someone. I muted the TV to listen in to the voice, wondering if it was one of our parents. At first I thought it was her friend Sonya, but recently the two of them had a big argument and Sonya wasn't talking to her. All this suspicion made me curious about who was coming into the house as I leaned over to look.

The first thing I noticed about this girl wasn't her face, but her giant ass. My eyes opened wide and my cock popped up in my basketball shorts as I admired it even more. I began leaning further to get a better look until I had leaned so far that I fell off the couch and onto the floor.

"What was that?" the girl asked.

"I'm guessing it's my step brother spying on us" I heard Mandy say before she called out "Mark, is that you?"

As I climbed back up onto the couch I called back "Yep, yeah it's me... I fell asleep on the couch, and then I rolled off of it..." I lied.

"Well I want you to meet someone.." Mandy said in a happy tone.

I sat up on the couch as I watched Mandy walk into the kitchen, my eyes opened wide yet again as I looked at Mandy, only she looked different, she was no longer a blonde.

"Woah.." I said as I looked at Mandy's new chocolate colored locks.

"What do you think of THE NEW Mandy?!" she asked.

I was still a bit taken back by the sudden change, but it didn't take long for my cock to do the thinking for me as I replied "You look great, where'd you get that done?"

"Oh Gigi did it for me.." Mandy said as she pointed down the hall, out of my eyesight.

"Who's Gigi?" I asked.

I then watched as the girl who's ass I had been looking at entered the kitchen and stood next to Mandy. After finally seeing her face it was as if the heavens opened and a light shined through on her. She was perfect. Bright orange hair with hot pierced lips and eyes that quickly suckered me into their gaze.

"Hi, I'm Gigi!" she said as she waved at me.

"Oh uh... uh hi.." I said, a bit taken back by her looks as I waved back.

The two girls giggled to each other as Mandy joked "Hey bro, I think you dropped your jaw on the floor, you might wanna pick it up hehe"

I finally regained myself and rolled my eyes and chuckled as I brought the subject back to Mandy's new hair.

"Well Gigi you did a great job with her hair, how did you two meet anyways?"

Mandy and Gigi looked at each other before Mandy blushed a bit as she began looking around the house.

"Are mom and dad home?" she asked.

I shook my head "Nope, they're out with friends, some game night think with the neighborhood couples"

Mandy nodded her head as she then explained "Well I started working at the sex shop, and one day Gigi came in and instantly I said I liked her hair, so we exchanged numbers and have hung out a few times, and finally I asked if she'd recolor mine and she said yes!"

I nodded my head at the story, however my mind was still stuck on the part about Gigi going to the sex shop.

"Ah gotcha, well it's nice to meet you Gigi" I said as I waved to her again.

"Nice to meet you too," Gigi replied.

"C'mon Gigi, lemme show you my closet" Mandy said as she began to walk out of the kitchen. Gigi began to follow her, and from the second she turned around my eyes were glued to her ass, seeing it seemingly about to rip a hole in her pants.

"Holy fuck..." I thought to myself as I put my hand on my crotch, feeling my cock getting harder as I replayed the visual of her ass in my head. Now that I knew her name, I did what any guy would do upon learning their step sister's hot friend's name, I took out my phone and searched her name on Instagram out of all the people that Mandy followed. I found her account which was like a gold mine of sexy content.

As I scrolled through, I slowly pulled down my shorts and began stroking my cock while looking at her pictures. I hadn't even known this girl for a full day and I was already perving over her, wishing I could fuck the shit out of her. My cock was tingling as I stroked faster and faster, focusing on a perfect picture of her ass. I could feel the cum pumping up towards the tip of my cock when I started to hear Mandy and Gigi walking down the stairs.

"Oh shit!" I thought as I quickly pulled my shorts back over my cock, however I had already started to cum. I was cumming so hard that I nearly let out a loud grunt, but I stopped myself and grabbed my leg instead as Gigi and Mandy entered the room wearing new clothes from before, small tops and shorts as they carried towels too.

"Is everything okay bro?" Mandy asked, quite puzzled at my current position.

"Oh uh yeah... I just uh... I got a bad leg cramp... what's up?" I asked after covering up my true predicament as I felt the cum covering the inside of my shorts.

"Well we're about to go over to Mrs. Evan's house to swim, wanna come with us?" Mandy explained.

Mrs. Evans did indeed offer for us to use her pool whenever we wanted, however in my current state of cum covered crotch along with having to continue my job hunt, I shook my head and replied "Nah that's fine, you two go ahead without me.."

Mandy shrugged and replied "Alright, let's go Gigi" as the two turned and went out the front door.

As soon as the door shut, I stood up off the couch and began walking like a cowboy up the staircase, making sure the sticky cum didn't touch my body anymore.

"Ugh for fucks sake!" I said to myself as I pulled them off and tossed them into the washer. Seeing as I was all by myself in the house I walked back to my room naked and sat down at my computer, checking my emails for any responses to the job applications I had put in, and still nothing. For the next few minutes I went from website to website looking for places hiring around my area, trying to find a place to make some money.

After a while I started to hear some splashing coming from outside. My curiosity got the better of me as I leaned over and looked outside to see Mandy and Gigi by the pool. My cock sprung up again as I spotted my newly brunette step sister Mandy in her bikini, however it was Gigi that once again made my balls tingle as I saw her wearing tight green bikini bottoms that seemed to be wedged between her massive cheeks.

My eyes were instantly glued to Gigi once again as she swam back and forth in the pool, showing off her ass yet again. I grabbed hold of my cock and began stroking at the sight of my step sister and her friend showing off in their bikinis, unaware that I was only a few feet away jerking off to them.

After a while I started focusing more on Gigi, watching her sit on the side of the pool and dipping her toes into the water. I took out my phone and switched to the camera before I started snapping pictures of her, private content for myself to jerk off to later when I noticed something. I looked around the pool and inside the pool and Mandy was nowhere to be seen. Suddenly my blood ran cold as I heard her right behind me whisper "Enjoying the view?"

I jumped and dropped my phone onto the floor as I spun my computer chair around to see Mandy standing and smirking at me.

"What the fuck?! What are you doing back here?!" I asked as I let go of my cock.

"I came to get my sun tan lotion, but then I saw your door was open and I heard you jerking off. It's not my fault you were so focused drooling over Gigi that you didn't notice I had left... But I mean... I can't really blame you hehe"

Mandy then started looking out the window at Gigi as she started rubbing her chest.

"She's pretty fucking hot, hu?" Mandy asked.

I turned and looked at Gigi again before I nodded in agreement. As I turned I saw Mandy pick up my phone and begin scrolling through the pictures I had taken of Gigi.

"Well well... someone's got a thing for my new friend, hu?" Mandy teased.

I chuckled and shrugged as I pointed at her and said "Can you blame me?!"

Mandy bit her bottom lip as she looked at my cock.

"I wanna watch you jerk off to her..." Mandy suggested.

"Hu?" I asked.

"Stand up and jerk off while you look at her... I think it's hot.." Mandy said as she spread her legs and began teasing her pussy over her bikini bottoms.

I was aroused by the sight of my step sister getting second hand pleasure from me, so I followed along, standing out of my chair and looking at Gigi as she got out of the pool and sat in a chair, showing off her gorgeous body even more.

"Mmmm tell me what you wanna do to her.." Mandy begged as she rubbed herself.

"I wanna shove my cock so far into her big juicy ass... I wanna make her moan for more until I cover her cheeks with cum..." I admitted as I started stroking even faster.

I closed my eyes and visualized the thought of fucking her ass for a few seconds, and when I opened them, I looked down to see Gigi had gotten up out of her seat and was walking towards the gate to Mrs. Evans backyard.

"I think she's tired of waiting for you.." I said to Mandy.

As I looked over at Mandy however, she had my phone in her hand, looking at the screen.

"Hey, give me that back!" I said as I reached over and pulled it out of her hand. As I looked at the screen, I got a frightened chill down my back as I saw what Mandy had done. My phone was on Gigi's Instagram DM's where Mandy had sent a message saying "Look up at my window" and the message had been labeled as seen.

"WHAT DID YOU JUST DO?!" I screamed at Mandy who was blushing and holding back her laughter.

Suddenly we both heard the front door open downstairs. Mandy jumped up from the bed and sprinted over to my closet, opening the slatted door and jumping inside.

"What the? What are you doing?" I whispered to Mandy, but to no answer.

I started to hear Gigi walking up the stairs, and I looked down to see I was still completely naked. I ran over to my dresser to quickly put on some pants, however my hands were shaking from how nervous I was I couldn't get them open in time.

"Oh my..." I heard Gigi's voice say from my doorway.

I slowly turned to see her looking directly at my dick, blushing and giggling to herself. I threw up my hands and was about to speak when Gigi stepped into the room and shut the door behind her.

"I think you've set the record for how fast one of my friends' brothers seduced me..." Gigi said as she licked her lips and smiled. As she took a step towards me, she began touching all over her body, and playing with her tits in her bikini top.

"So.... Do you want me, big boy?" Gigi asked in the most seductive voice I'd ever heard.

My eyes opened wide as I thought I was having a dream. Gigi walked up to me and grabbed hold of my cock, looking at it as it pulsed in her hand. Me and her locked eyes as she whispered "I think I'll take this as a YES!"

Gigi then pushed me backwards, making me land onto my bed with my cock sticking up in the air. I leaned up and watched as Gigi pulled off her top, exposing her plump breasts.

"I saw Mandy go into Mrs. Evans' back door earlier, I think they've been talking for a little bit now, so we've got a bit of time to have some fun..." Gigi said as she turned around to strip out of her bikini bottoms. As she had her back to me, I glanced over at my closet door, knowing Mandy was watching from the other side. As I turned back to Gigi, she grabbed hold of her ass cheeks and began wiggling them around as she asked "Do you like what you see?"

I instantly nodded and replied "Holy fuck yes!"

Gigi then turned back around and smiled.

"Good... but first... I wanna feel this big fucking cock in my mouth.."Gigi said as she climbed onto the bed between my legs, her eyes locked onto the tip of my cock.

I was in complete shock at how quickly this was all happening. Gigi began licking up and down the side of my dick as I was thinking about Mandy hiding in the closet, watching all of this go down. Gigi began taking more of my cock into her mouth, hardly ever gagging on it as nearly the entire thing disappeared into her mouth.

She began rubbing and squeezing my balls, teasing the cum inside of them as she worked my cock all over, giving kisses on the tip before taking it back down her throat, looking me in the eyes as she did it. As she pulled off of it, she began rapidly stroking it, smirking at me as she asked "Are you gonna cum yet?"

I smiled back at her as I shook my head and replied "Hell no baby!"

Gigi however was surprised as she said "Really? All that tip jerking off to me in the window, and a blowjob hasn't already gotten you off? That's.... Actually pretty fucking hot that you've lasted this long...."

I watched Gigi take her free hand and reach under her legs, rubbing her pussy.

"Mmmmh.... You've got me so fucking wet... I want it inside of me.. NOW!" Gigi admitted as she held up her fingers, showing them glistening with the wetness from her clit.

Gigi stood up and spun around, once again giving me a perfect view of her ass. She began backing it up towards me on the edge of the bed as she grabbed hold of my cock to guide it towards her pussy. I saw the tip of my cock disappear underneath her big juicy ass cheeks as I started to feel the tip rubbing against her pussy lips. Gigi let out an exhale that sounded so hot that it made my whole body shiver. I reached up and put my hands on Gigi's sides as she started to slowly lower herself onto me. Her pussy instantly started squeezing on my cock as I entered her, to which she started moaning very loud.

"UGH FFFFUCK! GOD YOU'VE GOT SUCH A BIG FUCKING COCK!" she admitted.

I chuckled and replied "I get that a lot haha.."

Gigi giggled as well as she started bouncing up and down on me as I stared at her ass, watching it shake like jello as she rode my cock.

Hearing Gigi moan over and over was so hot, she sounded even hotter than I had imagined. I raised my hands and began spanking her ass cheeks, one after the other like I was playing a set of bongos. The sounds that we were making were more entertaining than any music however as Gigi began bouncing faster and faster. I reached up and grabbed hold of her hair, pulling back slightly on it, to which she let out a laugh and said with glee "Oh FUCK YEAH BABY! MMMMH HARDER!"

Following her request I pulled back on her hair harder, making her begin to lean back further, nearly looking at my upside down. Gigi stuck out her tongue and began laughing with a big smile as the sounds of her bouncing on me sounded more and more wet. Finally she paused her bounces, letting out a deep moan as I'm certain she had just cum all over my cock. As she started to stand back up, I let go of her hair as I felt my cock slip out of her pussy.

She turned around and reached down to her pussy, spreading her lips apart and showing her soaking wet cunt. My eyes lit up at the sight as my mouth began to water.

"God damn, you're a horny bitch, hu?" I said with a smile.

Gigi shrugged as she climbed onto the bed and clarified "Horny, yes. A bitch, only if you're on my bad side!"

I then pulled her down next to me as I chuckled and said "Well come over here so I can fuck you on your good side!"

Gigi raised her leg in the air as I grabbed my cock and stuck it back inside of her. With her ass pressed up against me I began to thrust in and out of her hole, smelling her sunscreen on her shoulders as I kissed her neck.

I then started to glance over at the closet door again, remembering again that Mandy was locked inside. At this point however I figured I'd torture her a bit.

"She put herself in this situation, so she'd better be enjoying the view" I thought to myself.

I started thrusting harder and deeper into Gigi's cunt to the point that Gigi herself told me to "Slow down baby, let's make this last as long as possible..."

With Gigi's increasingly wet cunt constantly making my cock slip out after every other thrust, I decided to change positions. I pulled out and got onto my knees as I instructed Gigi " Back that ass up to my baby.."

Gigi delightfully got into the doggy position, facing towards the closet doors which is exactly what I wanted. With her unable to see me, I smiled right at the closet doors and stuck up a middle finger, knowing full well that Mandy could see it as I stuck my cock back inside Gigi's pussy. Gigi's ass cheeks were so huge, they made my dick look small by comparison, however as my cock stretched out her hole yet again, Gigi began to stretch her legs out far to her sides, nearly doing a full split as it felt I was splitting her in two.

I started spanking her again, this time licking my hand and doing it as I looked at the closet door.

"Mmmmh fuck yeah, you like that baby?" I said as I looked at the closet door.

Gigi however thought I was talking to her as she replied "Ugh fuck yes! I Love it when people spank my ass!"

I gave Gigi one last spank before I reached down with both hands, grabbing and squeezing on her ass cheeks as I continued to pound into her hole, still looking at the closet door. Gigi began screaming and squealing with joy, however she decided to muffle herself by burying her face into a pillow, which was perfect timing for what happened next.

I licked my thumb and began rubbing all around Gigi's asshole, teasing her until I heard a little clicking noise. Gigi was none the wiser as her face was still buried in the pillow, but I knew exactly what the sound was. I looked up at the closet door to see one of the wooden slates had been pushed up, and I could see Mandy's eyes looking out at us.

I smirked at her as I pointed down at Gigi's asshole, and with a single wink from Mandy, we were both on the same page. Mandy flipped the wooden slate back into place as I pulled my cock out of Gigi's pussy, giving her a moment to catch her breath.

As she started to lean her head up from the pillow, I grabbed hold of my cock and began to shove it into her asshole, much to Gigi's surprise.

"Wait... WAIT WHAT ARE YOU.... UUUUUUUGGGGGGHHHHFFFFUCK!" She screamed.

I grabbed hold of her hips again and began thrusting slowly back and forth, listening to her squeal as my cock forced its way deeper into her ass. Gigi began slamming her hand down on the bed hard and squealing like she'd crushed her toe in a door.

"You like that dick in your ass, baby?" I asked.

Gigi was breathing quickly as she was finally able to verbally reply "I.... I've never.... UUUGH FUCK!"

As I continued to pound away into her ass, I could easily surmise what her sentence was, which shocked me.

"YOU'VE NEVER BEEN FUCKED IN THE ASS?!" I then asked.

I then paused for a moment, giving her a fair chance to answer me. She then turned to look at me and clarified "Well.... Butt plugs and dildos.. But... never an actual dick!"

At that instant I felt honored and even more aroused at being the first actual guy to stick his dick in Gigi's ass. I pulled out for a moment and flipped Gigi onto her back. I lifted her legs up as I took my cock and stuck part of it back into her ass. Seeing her facial expression from the insertion was so hot that I asked "So, how does it feel having the real thing?"

Gigi's eyes slightly rolled into the back of her head as she took a deep breath and replied "I feels so fucking GOOD!"

I then climbed up onto the bed, putting all of my bodyweight down onto Gigi as I started thrusting into her asshole again, this time deeper and harder as I watched Gigi's face.