[MFF] I fucked my girlfriend’s sister

My gf at the time was 18 and her sister 21 and their pretty close (actually so close that my gf tells her everything about our sex life and stuff)

We met at her sisters house to drink together and celebrate her sisters raise at her job

So we turn the TV on, put on some playlist on YouTube and start drinking and having a good time

After some time we all are a bit light headed and the girls show each other some pics on their phones

My gf goes through her sisters phone and accidentally sees a nude of her and gasp loud and says “I’m so sorry”
Her sister says “it’s no problem you can loot at them if you want haha”
Her sister opens her nude folder in her phone and shows it to my gf and my gf does the same for her

I try to not be a total weirdo and try to not look on her sisters phone in my gf’s hand

Her sister see’s that and says “you can look if that’s okay for her”

My gf nods and smiles

So I sit there on the couch, my gf on my left side and her sister on the right side both kinda leaning on my legs to show the phone to us all while scrolling through it

Both looking at their nudes and saying stuff like “oh look in this pic ur tits look soooo good how did you do that?”
“Ur ass looks so much better then mine that’s kinda unfair haha”
“You have to show me how to make better pics from behind”
etc

And let me tell you, my cock was so hard the whole time, watching them scrolling through the nudes, listening to them talking about how they put oil on their tits for their nudes etc

So this goes on for a good 10-15 more minutes until their done with the pics

We continue drinking and her sister has to go and use the bathroom, as soon as her sister was out of the room my gf turned around, sat on my lap made out with me hard, grinded on my lap and said stuff like “mhh fuck i am so horny, I want you to fuck my so badly daddy”
My hands were all over her, squeezing her nice and soft tits, lifting her ass up and down so she grinds more on me etc
“I saw your hard cock through ur pants the whole time, fuck that turned me on” she said as she said as she rubbed with her hand over my pants

Her sister came back like a minute later and she got off before and we acted like nothing happend but I stayed hard the whole time

After like 30-40 more minutes my gf said she wasn’t feeling so good and she maybe had to much, so I asked her if we should go to bed?

She just said “yes I will go to bad but you don’t have to if you still wanna drink some more”

She kissed me and got up in the guest room and her sister and i continued drinking

Since we were already pretty fucked up we got closer and closer on the couch and I couldn’t stop thinking about her naked since I saw her nudes and I was hard the whole time
I was pretty sure she knew it the whole time since she looked at it over and over again she probably thought I wouldn’t notice since we’re so fucked up

She then “accidentall” spilled her drink on my pants, brought a paper tower and started to dry them
As she rubbed over my hard cock she just gripped it hard and started kissing me
We made out pretty wild
since I was so fucking horny she quickly opened my pants and started sucking my dick
She did it very sloppy and her spit was just everywhere fuck that was good I told her to stop or I will cum
Instead of stopping she deep throats my dick and plays with her hand on my balls and I shot a big load down her throat

She smiled but didn’t stoped stroking my cock, she stood up, pulled her pants & slip down and sat down on my cock with her back facing me (reverse cowgirl)

There was not even time for me to get soft again cause she started riding my cock like there is no tomorrow
She really knew what she was doing and said stuff like “now I know what she meant” “finally I can try” etc

After some position changes she and i came and put our clothes back on, finished our drink and went to bed

It wasn’t the last time we fucked

Might post more story’s of her and others (got lots of story’s tho)

And sorry for my english it’s not my first or even second language

Source: reddit.com/r/gonewildstories/comments/uc9716/mff_i_fucked_my_girlfriends_sister