My brother was 12 and I was 14 when we began to get into play wrestling. Our hormones were out of control and our burgeoning sexuality was getting the better of us. We got on each others nerves a lot and we resolved it by wrestling each other.

It was innocent at first but as the fights got more and more physical, there was a lot of brushing motions over private parts: his cock, my breasts, our butts, the cleft of my vagina. The touching and groping gave way to grinding and dry humping. The anger always gave way to animal lust and teenage hormones. After a session, the air was thick with the smell of his precum and my vagina was sopping wet.

After a few months, we'd get home from school and not even bother getting changed, such was the urgency of our need. He'd be in his shorts and shirt and I'd be in my school dress. We'd feign some sort of anger and start wrestling but it fell away quickly to pure wanton lust. We both didn't have a girlfriend or boyfriend which explained the horniness and our willingness to find a sexual outlet.

I'll never forget the day it escalated. He was grinding into me one afternoon when I asked him in an out of breath voice, to take off his shorts. He stared at me, his eye's wide open and began to say something but stopped short. Instead he took off his shorts and underwear in one swift motion. I grabbed his fat cock and gripped it tightly. He gasped and I could see the whites in his eyes. I let go, only so that I could take off my dress and underwear. He immediately grabbed my tits roughly and then shoved his right index finger up my slit as our mouths mashed together, tongues entwined.

"Quick, put your cock against me and keep humping", I implored him. He literally threw me down onto the sofa and laid on top of me, his erect cock firmly between my clit. He started grinding and humping automatically. I moaned as I felt amazing tingling sensations, especially when the tip of his penis would rub up against the entrance to my hole. The humping went on probably for no more than a minute before he exploded all over my stomach and breasts. He collapsed on me and was whimpering. Out of breath, I pushed him off, feeling unsatisfied and went to clean off. However, I was so horny I immediately masturbated myself in the shower. It wasn't enough.

That night, after every one had gone to bed, I tiptoed across the hall to his room and went in. I woke him up, shushed him before he could make any noise and whispered to him to take off his clothes. I got naked and joined him in his small, single bed. There was no need for foreplay - he was fully erect already. I pulled him over me, our tongues intertwined. It was silent for a while as we luxuriated in our tongues and the taste of minty saliva. His cock pushed against me as we lay, awakening my fervent lust. Then I simply whispered to him" "I need to cum".

He stopped kissing, lifted himself up and positioned the tip of his cock just between my lips. I giggled as I grabbed him to reposition his angle and then he eased himself in. It was a sublime, mind melting moment as I felt myself getting filled with his meaty cock. Once it was all the way in, he started fucking me in earnest. It was a blur of lust, French kissing and pounding as he silently as he could so as not to wake our parents. As he approached his orgasm, he mouth the word "sis - I'm going to cum". In my heady lust, I whispered to him to cum inside me. All I wanted was to cum with him. In hindsight, it was an incredibly stupid thing to do without any sort of birth control but lust does wonderous things to common sense and logic. I just knew that I loved the feeling of being penetrated by his big cock and wanted to maintain that full feeling between my wet, dripping slit.

He pumped furiously, his body pushing mine legs wider with each powerful thrust until he finally exploded. The feeling of his semen shooting up inside me with each twitch set me off. Each jet of cum and thrust of his fat cock sent me into waves of convulsing lustful pleasure and I began to orgasm. Semen began to drip out of me as I shook and shivered. I don't remember it but I bit my brothers fingers as he forced his fingers down my throat. I moaned out "don't stop fucking, don't stop pushing your cock in me!" He complied and kept thrusting. By this stage my body was so contorted I think my legs were behind his ears as I tried to opening up my slit fully to receive his cock, pressing against the sensation of his head sliding between my lips. When he finally had no more cum, he stopped and collapsed on me, slick with sweat and cum. We were both seeing stars. When he finally got his breath back, all he said "that was insane".

And that was how we started 3 and a half years of intense fucking behind our parent's back, after school, on weekends, and on vacation where we had separate rooms or cabins to our parents. We were highly sexed and all it often took was a look and then it'd be on. I don't know how we got away with it. Of course, we used condoms to avoid pregnancy.

The sexual relationship naturally ended when we each found partners, . However, the underlying tension between us still exists, bubbling and simmering with latent energy. Since those early days, we have never directly spoken about it except through our eyes. And the kicker: when I was 31 my mother and I were having a wine together and she let slip that she knew about my brother and I shagging. I was floored but she consoled me in saying that at that age, in our sexual prime, she'd rather us have sex with each other to keep our hormones in check than for us to sleep around and get diseases or get pregnant. She said she was also once a randy teenager and empathised with the need to rut to ease the sexual tension. The proof of that was our good behaviour and excellent grades. I cried and told her that I loved her for understanding.

That was 3 days ago and this is my confession.