My girlfriend (fifth part)

She was there with her ass in the air, without hesitation I started to squeeze it, and instantly she got up. The first thing she said was 'stop', then my sister could come over, please erase that, almost done saying it and I heard the sound of keys, which was my girlfriend coming from the gym, I greeted my sister and went straight to the shower. After that everything was normal, except for the fear that she would tell someone because it hadn't been enjoyable at all, but surprisingly it wasn't like that. Two days later she appeared again in the afternoon, wearing a very short legging where her cheeks were slightly sticking out, almost died when I saw her. My girlfriend says 'we're coming, I'm going to buy juice for the tereré', but as soon as my sister-in-law says she's not going because it's too hot, the first thing I thought was that she wanted a fight, and as soon as my girlfriend left, my sister-in-law threw herself at me with kisses and hands all over my body, she resisted and every now and then said 'my sister is coming', I told her to meet us somewhere else and she didn't want to, so I was going crazy, this girl was playing hard to get and I was losing by a landslide. The next day it was her birthday, 16 years old!!! She came home to show me the cell phone her dad had given her for her birthday, she came with a very short skirt and loose pants where even the slightest breeze would reveal her pink thong inserted all the way into her butt. I was wearing my black short pants which she knew well because it was the ones I wore when 'accidentally' she saw my cock. My wife was standing in front of me, I had already sat down on the bed, then my sister-in-law turned around to face her sister while showing her the new phone, imagine having a beautiful view of her white ass, I couldn't take it anymore and with the excuse of also seeing the cell phone I stood behind my sister-in-law while my wife was handling the device to check its features, I pulled out my cock and put it under her skirt and between her legs just millimeters from her pussy, it was as if sunset the sun had on my face my sister-in-law, suddenly she turned red, rosy, I think my penis was all wet with excitement, with great care so that her sister wouldn't notice anything, I put a hand behind and started pinching to make me come out of between her legs, at the point where it worked because she couldn't stand the pain, then I pulled it out, I lay down and covered up so my girlfriend wouldn't see my cock like this, hard, wet, and throbbing, she took advantage and asked to go to the bathroom, she must have gone to clean herself up because for sure she would have gotten everything wet with my liquid, unbelievable what heat can make you do, look if my girl was aware of it, I didn't even imagine the scandal that would happen. Everything stayed there. That night I sucked my girlfriend's pussy like never before, according to her, without knowing that in my mind I was sucking her sister's. One afternoon we went to my in-laws' house for dinner, but unfortunately a terrible storm hit and we couldn't leave to go back home, then my father-in-law offered me his room so I could stay with his daughter until the next day, obviously I refused, but he insisted so much that I finally accepted, he said here are some movies if you want to watch, when putting on the movie, my other four sisters-in-law appeared who could also stay and watch, obviously my girlfriend said yes, since the bed was a double one it was big, my girlfriend went and lay down at the back, my sister-in-law next to her and I next to my beloved sister-in-law, the chubby one next to me and the other sister-in-law sat on the floor. Everything normal until the chubby one started giving me kicks in the ass with my penis because we were all lying on our sides watching TV, when my girlfriend realized it, she got out of bed with some very ugly insults, imagine those kicks already had my cock hard, at the point where I started caressing my sister-in-law's leg who was next to me and my girlfriend didn't know because she was behind her sister, but I was so hot that already It didn't matter, it was the moment where my sister-in-law got up suddenly, almost giving me a heart attack thinking she would yell and tell everyone what she was doing, but no, I was way off. There was a blanket at her feet, so she got up to get that blanket and went back to snuggle up beside me, covering herself and me with it. Then I understood she was helping and asking me to keep going, of course I started caressing her, her leggings were very short, it wasn't easy getting to her pussy, I could feel small hairs and a very wet pussy, I was caressing her with all the world's tranquility, putting my fingers in her pussy while watching the movie, which I have no idea what it was about. Everyone got up, some went to the bathroom, my girlfriend turned off the TV, when I finally told my sister-in-law to stay and sleep with us, she just nodded, then looked at her sister, and my girlfriend looked at me, of course I said yes. I went to the bathroom and came back, my sister-in-law said something, I was already imagining doing it slowly and gently from behind until filling her up with cum, but unfortunately the other sister-in-law, may she die a virgin, made a terrible scandal about not being okay with her little sister sleeping with us, so my sister-in-law went to sleep in her room and again everything went better with my girlfriend, what a fuck I gave her that must still be remembered today.