My Girlfriend and Her Baby Sister

by Lina

Disclaimer: None of these persons exist. This is a fictional story. Nothing in it is real. It is a work of imagination. But one can always fantasize that somewhere there is young Lina, Olivia and little Mia who enjoy very special time together.

Hi. My name is Lina and I want to tell you what me and my girlfriend Olivia did a week ago. I got her permission to post this as long as it could not be connected to us. So actually these are not our real names, because we could get into lots of trouble if someone found out who we are. We are both 14 years old and are classmates. It is summertime here and our intention was to ride bicycles to the forest hut of my family for a picnic and to have sex. That plan had to be cancelled when Olivia's parents had decided to spend a day together without the children. Olivia's eighteen months old sister Mia was left with Olivia for babysitting. We could still spend time together at their home.

I was somewhat disappointed because I assumed that we would not be able to make love because we had to look after Mia. We were sitting on the living room floor while Mia was crawling on the carpet next to us. We were talking about this and that, but there was this familiar sexual tension building between me and Olivia. Mia wanted to be hugged and Olivia took her into a sitting position between her own legs with both of them facing at me. It was warm weather and Mia was lightly clothed with only a diaper and a T-shirt on her.

We continued our small-talk but during it Olivia smiled at me with a glint in her eyes and put her palms on Mia's chubby thighs. Slowly she started caressing those sensually up and down. I was a bit taken back, but Olivia just kept smiling prettily and I looked what was happening before me. Mia is a cute girl and her milky white skin looked so soft to Olivia's touch.

"Come closer", she invited. I approached them on my knees. "Look how perfect her skin is. Touch her legs."

"Is it ok for me to touch your baby sister like this?"

"Oh, it is perfectly ok. That is, if you want to."

I extended my right hand and gently squeezed one of Mia's legs. Olivia also continued her stroking motions and I felt my heart thumping wildly in my chest. I took a comfortable sitting position and started using my both hands to caress the little girl. The feeling was electrifying and I was becoming so excited that my face was hot and my hands were shaking. Olivia noticed this and quietly asked: "Would you like to do more?"

"What do you mean?"

"I mean with her. I know from the look of your face that you certainly would not be disgusted with some further playing with her."

When I did not answer, she continued talking quickly: "I have done it before and it is totally awesome. I'm sure you would like it too. It is such a naughty thing to do, but that makes it so exciting! Please Lina, let's do this together. Just the thought of sharing my little sister with you makes me so hot!"

"But isn't it very illegal?"

"Yes. It is. But no-one is ever going to find out. I have already trusted you to not tell anyone and I am certainly not going to tell. Mia is too young to tell. She won't even remember this when she grows older. We are not hurting her. Look how happy she is about the touching?"

Olivia was right. Mia was in a joyful mood as a result of our caresses. I exhaled deeply and said "Okay." Actually I was raring to go myself, but still felt it necessary to feign reluctance. Maybe I was still having a nagging thought in the background that this was some sort of an elaborate joke and Olivia would tease me about my words afterward.

Olivia was overjoyed: "Yes! You won't regret this. I can guarantee that you'll remember this day fondly for the rest of your life. Just wait a second while I lock the doors and close the curtains. Here, please hold her."

Now Mia was in my lap and I had some time to collect my thoughts. Was this really happening? I was about to molest a baby girl with my girlfriend. And the girl in question was her little sister. I was nervous but at the same time I loved Olivia even more than before. She had confided her deepest secret to me and invited me to participate in it. Such a courageous thing to do. If I had not been receptive to the idea of having sex with a baby, things could have gone very badly for her. Holding this small person while thinking about what was to come was making me cream my panties.

Olivia came back and began shedding her clothes. I followed and now we were both bare-naked. She invited me to undress Mia which I did with shaking hands. Removing the diaper made the puffy cunny visible for our feasting eyes. This was the first time I had ever seen such a small girl naked and I was already hooked.

"Since this is your first time with her, let me show what can be done."

Olivia put Mia on her back on the carpet and spread the little legs with both hands. "We can feel her from the outside", she demonstrated with her fingers. "We can also lick her. I'll make sure that she does not taste bad for you", she continued and carefully licked between the small slit and then all around on the mound. "I have also had her suck on my clit, but we can try that later. Now is your turn."

I got in front of Mia and inspected her baby cunny by opening it with my thumbs. Her vaginal hole was very tiny as could be expected on such a young child. I dove my face between her legs and had my first taste of baby pussy. I could hear my own heart beating. Wonderful, wonderful, I thought.

"Isn't it great? Don't you find this really exciting?"

I lifted my head only long enough to whisper "yes" and continued what I was doing. Mia was moving her limbs and making happy noises.

Olivia put one of her arms on my back while masturbating herself with the other and said: "Doing this together with you is the best thing ever. I'm so happy that you also like babysex as I do. From now on we can be totally honest and open about our thoughts."

She let me continue for a while longer and then asked to have a turn.

"Thank you", I already said full of gratitude, although we had just started and we intended to use this opportunity for full benefit.

End of part 1. To be continued.