My 13-Year-Old Self's Secret Summer Encounter

So this happened when I was 13, I'm a girl and he was 14. I always go to my grandmas to c him. I'm
Usually with my sisters but today I went by myself. When I got there he asked me if I wanted to go in the bedroom at the very back of the house I thot nothing of it so I said yes. We went back there and each sat on a bed. We talked about school and friends normal stuff. Then my dad came on and said all the adults were going to the bar and they would be back around midnight ish. It was only like 7 pm then. They left my cousins older brother(18) in charge of us. His brother came in and told us he was gonna take a nap. He was on the other side of the house. So me and my cousin were quiet for a minute when all of a sudden he asked me if I knew about sex. I said no cuz I was embarrassed but I knew a lot about sex. I had mastrubated before too. So he said well maybe I can teach u. He got up and sat next to me. He said well sex usually begins with kissing. He leaned in to kiss me. I stopped him. I said what r u doing? He said relax its just a kiss. He tried to kiss me again but I wouldn't let him. I said this is wrong we can't do that. What if ur brother walked in? He said relax he sleeps for hours and we will be all alone. I was really nervous and he could tell and he told me to relax he said that I was gonna enjoy it. He leaned in to kiss me and this time I let him. He kissed me passionately and ten he grabbed my boobs. I let out an unintentional little moan. And with that he lifted my shirt and took off my bra. He broke the kiss and started kissing my neck and down further. It felt so good but I knew it was so wrong I stopped him again I told him we can't do anything. He said why dont u like it? An I said of course I do but it's wrong. He said dont worry it will be ok. He put his hand on my jean and was rubbing me thru them. He took off my shirt and I tried to cover up. But he told me to relax and pulled my arms away. He started to like my boobs and I let out more moans. Then he kissed down my belly and he pulled my pants off along with my panties I quickly closed my legs but he re opened them and moved his mouth to my pussy he flicked my clit with his tongue this made me jump. He brought me to an orgasm and then he stuck a finger in and fucked me with it. It hurt at first but then it felt good. I had another orgasm and then he told me I had to return the favor. He started to unbutton his pants and he pulled out his dick it was 5 maybe 6 inches long and rock hard. This was the first dick is seen in real life and I was mesmerized by it. He told me to grab it and stroke up and down. So I did and he started to moan so I did it a little faster. Then on between moans he said suck it baby and he shoved my head forward and his dick in my mouth he fucked my mouth for a minute and then kept saying I'm gonna cum I'm gonna cum! I tried to pull away but his force kept me there. He chummed in my mouth tons of cum and he pulled out if my mouth. I was confused about what to do so he said swallow it so I swallowed most if it but some dropped out of my mouth. He was still rock hard so he pulled me onto the bed and positioned his dick in front of my entrance and I stopped him. I was nervous and I kept saying we can't this is wrong! He just kept telling me to relax I would enjoy it. He pushed a little and it hurt so much I almost screamed. He stopped and let me adjust then he started pushing again I was practically crying. I looked up and saw he got it all the way in and I relaxed a little and he started to pull out and it hurt a little but then he started pumping and it was starting to feel good. I was moaning and so was he in between heavy breaths I asked him not to cum in me cuz I didn't wanna get pregnant an he agreed and then he said he was gonna cum he pulled out an out his dick in front if my mouth and started jacking off then he cummed all over my face. We both collapsed ok the bed out if breath and sweaty. I started to feel guilty about what we had just done. I told him that and he said dont worry no one is ever gonna know! I won't tell if u don't. We agreed to that and the rest I the night was pretty awkward but then I left. I found out later that he told a few of his friends and one of his friends told my older cousin(18) and the next time we were all together me and my cousin and my older cousin were in the back room and he asked is about the sex we had. it was really really awkward at first and we both defended ourselves but he told us to relax and that he wasn't gonna tell anybody if we did what he said. we both agreed. first he told me to strip and so I did. he loved it he stripped to and ordered me to suck his dick so I did and he didnt wanna cum in my mouth so he cummed all over my boobs and stomach. he then ordered my younger cousin to strip and fuck me with me in top. he would fuck my pussy while my older cousin fucked my ass. I objected but he threatened to tell so I did it. he cummed in my ass and it was great! we were all tired and so we all fell asleep and almost got caught by our parents but we were clothed again so they didnt suspect anything. we fucked a lot after that and I haven't seen them in a while but I hope I will soon ;)