Sissy's sister

Anna had always seemed like a good girl. Our parents weren't suspecting anything bad about her, just like they didn't suspect I was spending a lot of nights dressed as a girl in my room. I had skirts, cute tops, slutty dresses, panties and sexy thongs, butt plugs, dildos, cockrings, vibrators... A whole panel of varied toys to play with while dressing up. I had always been very kinky, and often very horny in all kinds of situation. I supposed that drove the urge I always felt to take things always further.

When Anna had found out my secret, she had been using my computer momentarily and stumbled across a video I had shot of myself with my webcam. I was masturbating upside down, my plugged ass in the air, and shooting my own cum on my face and in my mouth before showing it off closely to the camera. It's the kind of stuff I had been doing for a few months. Before that, I was just playing by myself with a few toys. Then came the need to feel more preverted, more girly. So I had bought clothes and a camera to record every masturbation session. I used them to jerk off to, and also I was making gifs out of those where my face didn't appear, and posted them online.

I wouldn't have imagined my sister's reaction. In fact, when she confronted me, it wasn't to laugh at me. I was horribly embarrassed in front of her sitting on my bed.

"Actually I think it's cute", she said with a kinky smile.
"Really?"

At that instant I remembered how much at some point last year I had started fantasizing about her. At that time I had been reading of lot of hentai (some brother/sister, but mostly trap brother/big brother). Now I didn't know what to think but those night masturbating while picturing her naked had been a great turn on for a while. I knew it wasn't supposed to be but...

"I think it's super cute that I have a little sister to spend girly evenings with !", said Anna, stopping my train of thought.

I tried answering but what came out of my mouth wasn't more than a syllaba.

"Yeah, we can tryout our new clothes and show them to each other. Come on, show me what you have to wear, I'll help you look cute. I'll tell you my secrets to look great and pick up boys easily."