Me and my sis

So basically I’m m18 and my sis is f19. This happened at about 5pm when most of the family was in the house. My sis and I were upstairs. I was about to go downstairs from my room, but I had heard my sis filming a tiktok sound where they twerk their ass and shit. I was curious so I ended up staying a bit back from her open room door. Oh god damn, she was in booty shorts half sleeved up to the point where you can see her ass. She was twerking like crazy for the camera and was about to post it soon. I immediately got hard I won’t lie. I tried hiding my boner but I hit the door by accident to the point where she heard. I quickly hid my dick with my hands. She didn’t realize yet and she welcomed me in. Me and sis always get along very well. She asked me if I wanted to see her TikTok and I said yes. We sat on her bed, and well… I got hard as soon as I see the part where she twerks. She started teasing saying “don’t mind me lol and Ik you don’t mind me doing this right”. I said” yes, it’s cool”. After, she told me stay and watch her film another one live right now infront of her. I agreed. As soon as she pulled up her shorts again and starting twerking I was hard and I forgot to hold it down in advance. She quickly noticed through the mirror that for for casting both of us from the side. She realized and back up to me and started twerking on me like a Lapdance grind lol. After a few seconds, we both spread our selves. She was like “omg it’s so big bro”. It had been a min since I got a Lapdance so I played along with it. Eventually as I got up from the bed, she went on it and started arching her back and twerking like I have never seen something before. I quickly went behind her bare ass and after a few min, she quickly addressed how she should wear pants so we don’t end up fucking and shit. I agreed because I wanted that ass to make me cum at that point lol. She quickly put her pants on and went back on the bed in the same watching position and started twerking. She quickly insisted that I come behind her and I did. Omg, this was the best feeling I had in a min. She was hyping both us up as she was twerking on me and I was rock hard and she knew it, teased me, and felt it. After I pulled out my dick put it on her ass so she can twerk on it as she has pants on of course. She knew I pulled it out and she didn’t not mind at all, she actually got hard and more into it lol.After 30 mins of continuing I cummed so hard on her pants and she was horny asf and impressed. She quickly changer her pants before our parents came upstairs and we talked for a bit and then I went back downstairs so get something to eat. BEST EXPERIENCE EVERY. I got to record some part of it and she did not mind. Dm me if you want the video and the pics because every deserves this. It was very hot lol.