Girlfriends sister gave me a blowjob

Fake names. 18+. This is the first (and not last) time I ever did anything with my girlfriends younger sister.

Me (19m) and my girlfriend Sophie (19f) have a somewhat open relationship i guess, it's only amounted to me sleeping with some of her friends and her getting with one of her childhood friend a few times. The only rule she made pretty clear was her sister (18f) Lauren was off limits, which I had no problem with and respected. Both lauren and sophie have slim athletic builds, the only major difference is sophie has brown hair, while lauren is blonde. We all had a good relationship together, we hung out all the time together. At this point, I wasn't sure if Lauren really knew that Sophie and I weren't exclusive to each other all of the time, but I think she had the idea.

Well, one night we were in their parents basement hanging out, playing Fortnite for a bit, making extremely specific rules where we would make the person playing drink something or take a shot. Eventually we got tired of the games and decided to throw on a movie and get comfortable on the couch. We were all somewhat drunk at this point, but not over the top, just feeling good. I don't remember what movie it was, but sophie was not interested and passed out fast on the couch to the right of me.

I asked lauren "You want some ice cream? I'm going to go get some" "Mmmmmm sure"

I went upstairs got some icecream for us, and returned. When I returned, lauren had moved from the lazy boy chair to the where i was previously sitting on couch, laying so her legs were stretched out on the ottoman. As i walked up with the icecream, my eyes found her slightly tan legs and followed them all the way up to her shorts where i caught the slightest glimpse of her white panties under her shorts, and i immediately made eye contact with her. My heart jumped, she didn't say anything and we both acted like i did not just get caught looking at her like that. We ate our ice cream and watched the movie in silence. Lauren had finished before me and grabbed a blanket to cover her self up, it was getting cold in the basement. After i was done, i stretched my legs out on the ottoman and had a short burst of shivers.

Lauren giggled and asked "hahah are you okay over there?"

"Yea its just chilly down here"

Lauren giggled again "well get over here then"

and all in one motion she threw her blanket over the both of us and cuddle up next to me. Her legs went around my thigh and she was hugging my arm, resting her head on my shoulder. I liked this a lot more than I was supposed to. I felt the heat coming from between her legs on my thigh. I was immediately getting turned on and was trying my best not to get hard. We laid like this for a bit just watching the movie.

"Hey Dan? Can I tell you something?" She quietly asked, not looking at me."

Of course, what's up?" I said, not knowing what was coming"

"I've kinda always had a crush on you." She whispered now looking up at me, still hugging my arm

I was at a loss for words, i could tell she was somewhat embarrassed. She interrupted my stumped silence with a smirk and sarcastically asked

"What, do you think i'm ugly?"

"No lauren of course not, i think you're really hot- i mean uh pretty.." shit. The drunk, stunned , horny brain of mine was struggling to function.

She giggled again "hm, Good." And kissed me on the cheek. I was rock hard.

We watched the movie for about 5 more minutes in silence

"Is sophie asleep?" She whispered

"Yes she's passed out over there"

"Good" she said.

In a moment she pulled my face to hers and kissed me while moving her hand down to my cock. She squeezed my thigh with her legs and pushed her body on me. We started making out, trying to stay quiet and control our breathing to not wake sophie. Her hand was inside my shorts exploring my dick, feeling it, moving from the head, wrapping around the shaft, holding the balls, and moving back up, slowly starting to jerk me off. We made out like this for a few mins before she stopped kissing me and pulled the blanket over her head. I then felt the unmistakable feeling of her tongue licking my dick. She kissed soft and slowly up and down the shaft, she circled the head of my dick with her tongue, holding my balls in her hand. She finally slowly took the head of my dick in her mouth and slowly but surely took all of my 8 inches of dick in her mouth. I was impressed, sophie even struggled to do that. Lauren had a slight gag reflex and pulled my dick out of her mouth and i heard her giggle and say "sorry" from under the blanket"

She continued to suck on my dick, periodically take a break to stroke my dick covered in her spit.

"Lauren i'm going to come" i whispered in a heavy breath"

"Oh yea?" She giggled. She started sucking my dick faster.

"Lauren." Is all i could say as i felt the pressure building. She lifted the blanket from her head, i looked down to see her smiling and stroking my cock, looking right at me with those "fuck me" eyes.

I started cumming, she kissed my dick as i shot cum on her face.

As we caught our breaths for a moment, we just looked into eachother's eyes. This was probably the best blow job i've ever gotten.

"Be right back, gunna clean up" she smiled and giggled again as she walked to the bathroom.

I grabbed some Kleenex off the side table and cleaned myself up.

When lauren turned the bathroom light on and closed the door, sophie stirred and woke up,

"mm is the movie done? What time is it?" She sleepily asked.

I looked up and realized the credits were rolling for the movie. I found my phone, 3:30am

"Yea, the movies done sophie." I said, somewhat in shock.

When lauren came out of the bathroom and saw Sophie had woken, i saw disappointment on her face that she was trying to hide.

"Well, i'm gunna go sleep in my room, goodnight! Love you!" Lauren said looking directly at me again with "fuck me" eyes.

"Guhnight love you" replied Sophie, oblivious to what was going on and what just happened.

"Goodnight lauren" is all i managed to say.

Sophie and i slept on the basement couch for the rest of the night.

This is one of many stories like this that i have and plan on sharing. These stories are based on some real things i experienced and real people (fake names).