My sister and I came from a seriously broken home. Our father left my mother when we were young and we had no idea where he went. My mother was an alcoholic and spent more time at the bars than she did at home. My sister was two years older than I was, so she took as much care of me as she could, but growing up we both had a shitty time.

My sister had a friend named Amanda. Everyone called her by a nickname, Marilyn, after Marilyn Manson. She was a weird gal, freakish, but was always kind to the two of us. Her parents had pretty good money, and she lived in an apartment all her own when she was sixteen that her parents had built behind their house. My sister and I spent a lot of time over there, listening to music and sharing her food and drink. She was pretty creepy looking, but she had a great body. I was fourteen when I noticed, and never stopped ogling her.

One visit, she wanted to show us some pictures she's taken. She loaded them up on her computer and to my surprise they were nude photos of her, and a few where she was laying in bed, legs spread, masturbating with the handle end of a kitchen knife. I got a total boner, as weird as the pictures were and her showing us was.

She asked if we liked them. We both said yes, of course. This girl was giving us everything we needed to survive. She asked my sister if she could take some pictures of her. My sister didn't really want to, but ended up letting her. Marilyn wanted me to stay and watch. She shot a bunch of pictures and commanded my sister to strip, to touch herself, make sexy faces, etc. I knew it was wrong then and I know now, but I was fourteen. I couldn't help getting a boner.

Eventually Marilyn came over and gave me the camera. She told me to take pictures and showed me what button to press. She stripped and climbed on top of my sister and kissed her all over, then went down on her. Her ass was in the air and my sister didn't seem to enjoy it much. She just kind of lied there and let Marilyn eat her pussy. It was awkward and weird but I was hard as a rock.

Eventually Marilyn made my sister go down on her. I had to shoot pictures. We didn't want to ruin a good thing we had going. After awhile of trying, Marilyn got bored with it and made me come over to the bed. She gave my sister the camera and made her shoot pictures while she sucked my cock and then had sex with me. She loaded all the photos on the computer after I'd came, and made us look at them. My sister was absolutely horrified and embarrassed. We left there, and my sister didn't exactly want to go back, but the need for food and love drove us to go back many times.

On one of the weirder occasions, Marilyn had a bunch of wine coolers. We drank them and watched Natural Born Killers. After it was done Marilyn proclaimed to be horny. What I am about to tell you I have never told a soul, and it isn't typed here to give you spank bait. It's to get it off my chest.

Marilyn had us all undress. This time around it was a little more comfortable because we were all a little tipsy. She wanted me to take more pictures of her sucking my sister's boobs, which were ginormous. My sister was getting uncomfortable as Marilyn started sucking on her nipples, but it didn't matter. She pushed her back on this huge waterbed she had and held her down and started slapping at her tits. I was naked and taking pictures and with a huge boner. I was eager to please Marilyn, because she had sex with me, and I was emotionally and physically starved.

She had me hold my sister down, and I did it willingly. Then she put a finger inside of her. My sister was begging her to stop, but also laughing a little. It was weird. Then Marilyn put two fingers insider of her, and started kissing her hips. My sister started moaning. It was very strange. Marilyn put her face between my sister's legs and started going down on her, and my sister was writhing. I was still holding her down but didn't have to. She was actually enjoying it.

After a couple of minutes, Marilyn urged my sister to suck my dick. Obviously my sister denied her, but Marilyn kept on and on. Before I knew it, Marilyn just told me to put my cock in my sister's mouth and make her suck it. I was so horny that I didn't stop to think. I just shoved my dick at my sister's lips. She begged me not to, but after a minute or two started to kiss on it. Marilyn sat back and started directing. She told my sister how to suck me. Then she demanded I ate my sister out. I did as I was told. Then she wanted us to have sex. We both said no, but after some urging and prodding, we did. Right there in front of Marilyn, who took several pictures.

Then Marilyn took a turn with each of us. I tried to enjoy the whole thing, but felt weird and despondent.

After it was done, Marilyn made me cum on my sisters tits. She took a load of pictures afterwards, and then took us out for Chinese food like none of it was a big deal. Because she treated it that way, we figured it must not be a thing.

Before I knew it, my sister and I were both involved in a sexual relationship with Marilyn that lasted nearly a year, and a sexual relationship with each other that went on for several more.

Now that we're older, we've discussed it. We've forgiven ourselves and Marilyn, who obviously must have had been abused or had problems of our own.

My confession, though???? I still have some of the photographs of myself having sex with my sister. I masturbate to them frequently. I miss being inside of her.