Growing Up My Older Brother Included Me All The Time

He is five years older than I am and he never told me to go away, quite the opposite actually as we spent hours playing board games and other things like tag, walking thru the woods and just spending the whole day together. When he got his drivers license out mom gave him her old car and bought a new one, one would think he would have left me behind not wanting his gangly sister tagging along with him but he didn't, we would go to the mall, the beach and all over the place.
We were at the beach one day and he found one of those water boards, barely big enough for both of us but we were on it paddling out from the beach pretty far. He had me in front of him as we were laying on it, both my legs were like under his armpits and he was kicking off the back of it with his legs. I felt him resting his chin on my butt cheeks and thought nothing about it until he was using it to rub my bottoms downward then he asked me to pull them down further for him. I just did it without even hesitating, felt his tongue and lips on me licking and kissing my cheeks all over. He started licking my anus and lower, pushed my legs apart and I started lifting myself up for him because it felt amazing. I had no idea what was going on but some part of me was really enjoying it a lot. I did not have an orgasm, did not even know what they were yet but I was very turned on for sure as we paddled back in with my bottoms back up but him still kissing and biting my cheeks making me laugh.
We laid out on the beach for a while then started heading back home, I was still wearing my bikini and he reached over and pulled on side of the top off my breast, which was not much then but I did have big nipples and he played with one most of the way home. Once we were home and in the house he had my suit off in seconds, we went to his bedroom and he put me on his bed, I just laid there with my legs spread out as he licked my vagina for like an hour giving me several orgasms. He got up and took off his shorts and shirt, I was staring at his cock just amazed at how big it was, he laid down next to me and asked me to suck on it. I do not think he lasted a minute or two and I was tasting my first ejaculation and actually liked it.
He said we should have showered when we got back so let's go do that now, he washed me everywhere and rubbing and fingering me to another orgasm. I stroked and sucked him also to another one and then we ended up back in his room doing it all over again. He asked me if I wanted to try it all, I would have robbed a bank for him that day if he asked me and he wanted to try doggy style first. He was slow and patient with me as I gasped and pulled away several times but finally it felt good and he was in me pretty far, I remember saying he was big and his response was that was only half of it. About a month later during one of our many playing around sessions I would end up measuring it at just over eight inches so not surprising it took a while for it not to hurt.
I would give him a blow job all the time, I loved doing it, I have no idea why but sucking was love at first sight for me and still is one of my favorite things to do to my husband.