Sex with my sister – Amanda and Jackson

We are brother and sister and our first real sex occurred when we were 12 and 14. It is quite a story and this is the first part.

My sissy is younger than me by 2 years. We often have sex these days just for fun, but it started when she was 12 and I was 14.
We had been to a friend of the family’s birthday party and we were wearing fancy dress. It was a fun party and the adults really let their hair down. So much so that we had to take an Uber home because Mom and Dad were too drunk to drive.
When we arrived home Mom and Dad went straight to bed and so did I. I pulled off my fancy costume, knee breeches and stuff, and I crawled into bed without any PJs. I usually sleep on boxers but tonight I could not be bothered.
I read for a bit (I like sexy stories and I was reading one than made me feel quite excited) and then I yawned, turned out my light and rolled over to settle down to sleep.
Mandy came in very quietly and when I asked what she wanted she asked if she could hop into bed with me for a bit. One of the boys at the party had taken her aside into a closet and tried to kiss here, then he pulled her panties down and tried to feel her. He laughed when she got made and said that she didn’t have any hair down there and she was too young anyway.
Mandy was actually upset about this so I said yes, climb in. She settled down and rolled away from me, pushing her back into my front. Oh boy!. That wasn’t good. I had been reading sexy stories and here was this blossoming girl pushing her skimpy night clad back into my groin! Mandy was wearing a baby doll outfit with little top and quite skimpy panties. I pushed her away a bit because my dick was like really starting to stand up stiff.
She reached around with her hand to find me and brushed my dick. She asked me if that was my thingy and I said yep. Sure was. So she asked me if it was stiff and big and I had to agree. Mandy then proceeded to tell me what her gfs say about this sort of stuff and she asked if she could hold it, so I said yes, but be careful.
She rolled over and faced me and asked why she should be careful.I replied that if she touched it too much I would come, so she immediately started rubbing her hand on it, and I came. I gushed. It was so amazing to have someone do this for me and Mandy is a sweet little thing with a nice slim figure and some emerging breasts that were quite erotic for me.
After we cleaned up (she had taken her panties off and used them), the lay back and asked if I would like her to do me again. I immediately agreed but she said that if she was to do that could I do something to make her feel sexy too. So I placed my hand on her emerging breasts and started to rub. But she said she wanted me to do something very sexy and pushed my hand down to where her legs joined. She did not have any pubic hair, which surprised me, and she had this very small slitty thing. She asked me to put a finder in it and to rub her a bit. She told me she sometimes does that and she gets real good feelings, but having someone else do it was her dream. She thought that would be so much better.
So I did.
She opened her legs quite wide and she brought her knees up, it was like it was an instinctive reaction, and I slipped my finger into her slit. It was a bit warm and quite moist and she arched her back and said push it up further. So I did.
By this time my cock was standing up and hard like never =before. I had never been this close to sex, ever.
After a bit she sort of owned and relaxed back, her legs just flopping down splayed open and her little slit was oozing some cum I suppose. In the meantime my boner was so hard.
I rolled up on top of her, between her legs, and she asked me what I was doing. I told her I didn’t know but that I was sort of being like a person having sex. My cock was just touching her slit and there was what they call pre-cum oozing from it. Mandy sighed and pulled her knees up a bit and my cock just found its way into her. She moaned again and I could not help it. My basic instincts must have taken over because I pushed my cock into her slit. I felt resistance but nothing could stop me now and I just pushed harder. Mandy yelped and I had to put my hand over her mouth. She promptly bit my hand and drew blood and my cock seemed to break free inside her, and then we were having sex.
I did not think she really wanted this but I could not stop myself from pumping in her and she started lifting her hips and meeting my pushes. Of course it did not take long to cum and I called out to her to hold still while I pushed right up inside her and discharged by gushing cock. I could feel her muscles sort of grab me and I reckoning I pumped a milk bottle full of cum into her. Wow.
As I rolled back and pulled out of her I saw that she was smiling so I knew it would be ok. Then I saw the cum oozing from her vagina and there was some blood in it and around her slit. I got seriously worried that I had hurt her but Mandy said that it was nothing. It was just first time stuff and she would never bleed again.
Then I noticed my hand was bleeding from where she bit me when I was breaking her hymen. Wow. What an experience.
And then I looked at the sheets, and at her panties and then at her baby doll top and I knew I was in big trouble because I could not explain this stuff away with Mom.
Mandy helped me remake the bed, she found a new baby doll set and we put some fresh sheets on the bed. I bundled all the stuff up and hid it in my wardrobe cupboard. I just hoped Mom wouldn’t miss them.
Mandy settled back into bed with me and when I whispered that she should go back to her own bed she would not. She wanted me to comfort her and hold her, so I set the iPhone alarm for 6 am and said she had to go then.
During the night we spooned up and I could not help rubbing against her bum. She slipped her panties off this time and I came on her lovely sweet bum about 3 times during the night. We had laid a towel down to catch any cum so I did not have the worry about soiled sheets in the morning.
At 6am the alarm went off and Mandy rolled over to me and spread her legs and asked me to do her again. So I did. My cock never needed to be asked twice. Mandy was wet in her slit and we just sort of laid side by side, she lifted her leg up and this time my dick just slid in to her. I think because I had come so much I could remain stiff and pump her for a long time. Mandy moaned and eventually she stiffened up and let out little cries like a pussy cat mewing and then I felt a flood of her juices. This made me cum too and it was just absolute ecstasy.
She slipped off to her own bed, I rolled up the towel, then I laid back and wondered if this was all a dream.
It was not. It was real. And I will tell some more about this story because I know it is unbelievable, even if it is true. Think Mandy again, trying anal sex, getting caught, a ladyboy from Thailand and why we are both, Mandy and me, half castes. American and Thai.

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