Best version of my sister

My sister suffers a very rare form of multiple personality disorder, and now she has a personality that I love.

I have an 11 year old sister, her name is Lilly, she’s a normal happy girl who does what other girls her age do, she likes cartoons, eating sweets, going to the park.

I also have a sister called Sophia, she’s a wild one, a bit of a rogue, likes things her own way, doesn’t take shit from anyone, dresses like a Goth and listens to heavy metal music.

And I have another sister called Anabelle, or Anna for short, she is very playful and extremely horny, she likes sex anyway she can get it, she’s a proper slut.

What do my sisters have in common, well, I only have 1 sister, she is 11 and her true name is Lilly, but due to medication she takes for her blood disorder (which isn’t life threatening), she has developed multiple personalities, Lilly, Sophia and Anabelle are the same person sharing the same body.

For years my family has known about her personalities, Lilly and Sophia, one day she could be a nice sweet girl, wearing pink flowery dresses and being polite, the next she’s destructive, swearing, abusive, wearing dark clothing and telling everyone to go fuck themselves.

Our parents have 2 bedrooms in the house for her, one is for when she’s Lilly, the other for when she’s Sophia, it’s hard to explain but when she randomly switches personalities it is genuinely like Lilly and Sophia are two completely different people, and neither of them remember what the other one does when they emerge.

Then one day a new personality emerged, Anabelle, and I have to say she is by far my favourite sister of them all.

I was in my bedroom one Saturday afternoon, laid casually on my bed playing on my Switch, when there was a knock on my door, and when I looked up I saw Lilly standing in my open doorway, she was wearing her pink fluffy bathrobe.

She was leaning against the doorframe, I guess trying to look sexy, twirling strands of her hair around her finger, “Hi Bradley.” She said, in a very playful tone.

Then she stepped in to my room and closed the door behind her before slowly walking towards me with a strange look in her eyes, she walked right up to me then leaned down and kissed me, very nicely, on my lips, I thought it was funny, “What are you doing?” I asked her, with a chuckle, when she finally stopped.

She said nothing only smiled, then she kissed me again and while she was kissing me I felt her slide her hand down the front of my joggers and she grabbed my cock and balls, I moved my head away from hers to stop her kissing me, “What are you doing, Lilly?” I asked, thinking it was Lilly because she was wearing her pink bathrobe.

“I’m not Lilly. I’m Anabelle.” She whispered.

“Who? —- “ I asked, but as I said it she kissed me again, and continued to play with my cock and balls, it felt nice so I guess I just got in the zone for a minute, then regained my sanity and pried her face off mine again, “Stop – Why are you acting like this?” I asked.

Then she stood up straight and loosened her bathrobe, letting it fall from her shoulders on to the floor, she was butt naked, “I want to fuck.” She said, then she leaned down again, pushed her hand back down my joggers and began to stroke my now very hard cock, and she whispered in to my ear, “Do you want to fuck?”

She is my sister and it should have been an instant no-no, but I am 16 years old, and she has a hot body for a girl her age, I had a throbbing erection which she had hold of, firmly, and she was the one asking me for it, so what was a boy to do, “Yes.” I replied, I pulled her in and give her a long passionate kiss.

Then I pulled her up on to the bed, she was laying on top of me while we kissed and I rubbed my hand up and down her naked body, over all of her smooth curves, down her back, over her soft round butt and down her legs and all the way back up again.

We stopped kissing and I brushed her hair off her face as I held her cheeks in my hands, “Who are you?” I asked.

She smiled, “I told you. I’m Anabelle.” She replied.

“Anabelle.” I said, “That’s a cool name. Anabelle.” I added.

We started kissing again and I rolled us both over so she was now on her back, I got on top of her with her legs at either side of me, knees raised, rubbing my hands over them, then I kissed and licked her tiny nips, then moved down and licked her smooth bald pussy for a moment, tasting her youth.

I pressed the tip of my cock to her slit and I pushed, FORCED, it inside of her small hole, she moaned loudly as I penetrated her, then I started thrusting hard, I liked how tight her pussy was clinging around my cock and I was determined to get it all the way inside of her, “Ungh – Yeah – Fuck me, Bradley!” she moaned, as I kept thrusting deeper and deeper.

“Oh Anabelle!” I groaned.

“Call – Ungh – Me – Ooah – Anna. Call me Anna.” She replied.

“Anna!” I gasped.

I don’t know how long I was fucking her for but it sure felt like a long time, until the inevitable happened and I ejaculated deep inside of her, she dug her fingernails deep in to my skin, scratching up my back as I came.

Then it was over, we rested briefly and then she got up and put on her bathrobe, “Shush – Don’t tell mom and dad, okay. We can do it again tomorrow.” She said, well of course I wasn’t going to tell mom and dad about it, I’m not stupid, but damn…. My sister is a good fuck, well, Anna is at least.

I tried to talk to her about it later that day but she’d reverted back to Lilly, luckily I didn’t say too much to her, only asking her if she enjoyed it in my room earlier, Lilly didn’t have a clue what I was talking about, thank goodness.
It was nearly a month before Anna’s personality returned, I thought she’d gone for good at one point because she hadn’t been present for so long, but she came back, and that was a very interesting morning, a very nice, steamy morning.

My sister is weird, kind of freaky, but finally she has a personality that I really enjoy.

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