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doing my girlfriends lil' sister

sexer1 on Taboo Stories

Babysitting my girlfriends little sister



My name is Bill, I just turned 27 and I have a beautiful girlfriend named Melinda, she just turned 20. Some people may think she’s a little young for me, but I only get turned on by a girl if she’s younger than me so I’m fine with it.



Last week I asked her to move in with me, but she thought it was a little soon, after all we have only been dating for 3 months. So I go to her place 3 to five times a week, as it’s kinda hard for her to come to my place, she doesn’t own a car yet.

This story starts in the morning after a great night of sex at her apartment.



I woke up around 8Am by the annoying beep of a mobile phone. In confusion I rolled out of bed, picked up my girl’s phone and answered. It was her mother, asking me if we (Melinda and me) if we could babysit on her 16 year old sister, Maggy, that weekend, they were going on a weekend trip to the family beach house. As I had nothing planned anyways, I agreed, hung up the phone and jumped back into bed.

Melinda, was still asleep and only found out that I agreed with her parents later that morning. After a nice breakfast for two, I remembered the call and told her of our new plans this weekend.

“You dit what Bill? Don ‘t you remember I’m off to a friend of mine this weekend? I told you last week! Are you calling my parents that we can’t babysit ” As I didn’t feel like getting into a fight this early in the morning, I told her it would be fine and that if it was ok with her and her parents, I would spend the weekend with Maggy. She agreed, but wanted me to ask her parents if it was ok, and so I did. It quickly turned out, that the entire family, including maggy didn’t think it was a bad idea.



The rest of the week passed quietly, until Friday came and my girl left for the weekend, and I got into my car to pick up Maggy from school, her parents left earlier that day. As I drove up to her school I saw maggy standing in front of a group of guys with 2 friends of her, it looked like she was the popular girl in school. No wonder I thought, she does look very good for her age. She must have been around 1 meter 60, I guessed about 45 Kg with long curly blond hair. It was also the first time I noticed that she was much more mature than other girls of her age, it looked like her breasts were about a full B-cup. She saw me sitting in the car, said something to her friends and walked to car. “Hi bill!”she said as she sat down next to me. “how are you?” I asked.

and so we had a chat about nothing special really, she told me she wanted to rent a movie and sit on the couch with a big bucket of ice. Fine with me, I replied. We drove past a video story, hired this movie called “Cruel Intentions”, bought ice and went home.



Later in the evening, after ordering a pizza, we sit down on the couch and put in the movie. I had never seen it before, but I quickly noticed that the main theme of the movie was sex.

“you like the movie?”she asked me. “sure, do you” I replied. “yeah, it’s alright” she replied.

After a while, it became awkward watching this movie with my girlfriends sister, and left her to it.

“where are you going?”

“I need to do some stuff for work, you have fun watching the movie.”

“But I don’t want to watch it without you” she replied. I don’t know how she did it but she convinced me to stay and watch the entire movie with her. When the main characters had a big sex scene, she asked me if that’s what I did to her sister as well. I turned red and replied she shouldn’t be asking things she didn’t want to know the answer to.

The movie ended, and I made up a spare bed for her in the guest room, gave her a night kiss on her cheek and went to bed.



It must have been 2.30 in the morning when I was awoken by someone tapping me on the back. As I turned around I saw Maggy sitting next to me. She was only wearing a G-string with a wide shirt over it, her nipples sticking through the soft fabric. She asked if she could sleep in my bed. She told me she had nightmares. “Sure I said, but don’t tell your sister or parents.” I told, while I felt my dick suddenly enlarge.

“of course not silly” she replied.

I wanted to turn around and go back to sleep, when she told me it was to cold and if I could hold her.

“I don’t think that’s a good idea Mag” I replied.

“why shouldn’t it be? Please I’m so cold!” And so I Turned around and put my arm around her, me dick now as hard as it can be. So we laid in a Spooning position, she started to giggle she asked if she turned me on. I directly rolled away and said no.

“it’s ok, I hoped you would be” she said as if felt her hand go over my chest.

“I still don’t think this is a goo..” I tried to say when she suddenly moved her hand lower, and started to rub my dick. “why don’t you stop thinking and start relaxing?” she said while her hand went into my boxer and took a firm hold of my dick.

“Damn bill your big!” she told me. “thanks I guess?” she replied.

“remember the stuff we have seen in the movie?”she asked me, while she started jerking me off.

“can you teach me how to do that?” “well are you sure you want that?” I replied, while thinking about how amazing it would be to have sex with this tight little virgin.

“yeah I am” she said, before I took her hand and pushed her on her back. “Ok than let me first show you what it feels like.”



I was lying of of her, with one hand on her back and one other hand resting on her belly. My left hand unhooked her bra, after which she took it off. I slowly started to suck her nipples. She started moaning softly, and asked me to go on, grabbing my right hand and pushing it downwards.

“are you sure?” I asked one more time, “yeah just do it” she replied.

My left hand now resting in her neck, while my right hand slowly started to rub her panties. It was already soaking wet. “damn girl you must be horney as hell”, she admitted that she was. With one smooth move I pushed away the fabric and entered her tight pussy with two fingers, her body directly tightening up, while moaning loudly. “Go on!”

My hand quickly going in and out of her pussy, while sucking on her left boob made her moan like crazy after a while. When she yelled she was cumming, I couldn’t take it any longer, took out my hand and went lying on top of her.

the moaning suddenly stopped and with a scared voice she asked me what I was doing.

I’m gonna fuck you that’s what I’m going to do! She asked me to wait, but I couldn’t’take it anymore, I pushed down my boxer , tore apart her small panties and pushed the tip of my hard dick into her pussy.

Damn what a tight girl! I thought, when I started slamming my dick in and out of her. She screamed in the beginning, while blood was flowing out of her pussy. As I ignored the cries and went on fucking her, the screaming turned into moaning. “ahhhh Fuck me brian Fuck me!” Suddenly her body tightend and she stopped moaning, having her first orgasm during sex. I stopped, but slowly started pumping again because I felt I was gonna cum. I pulled my dick out of her pussy, sat down ontop of her belly, my left hand pulled up her head and started fucking her mouth. As I Came into her mouth, she tried to swallow it all, but failed and spilled some on her little boobs. I lied down next to her and watched her using her fingers to whipe the cum of her chest and licking it off her finger, before we both went to bed.



This was part 1, I will continue with the day after if I get a positive responds on this one.

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