My Girlfriend & Her s****r - Sex Stories

My Girlfriend & Her s****r

It all started back in 2012, I was a 18 year old boy and it was the summer holidays; the weather was boiling, there were k**s playing in the street and I had nothing to do as usual. I sat on the sofa watching f****y Guy whilst my parents were at work and my friends were on holiday thinking to myself "another 7 weeks of this, Jesus, I'm going to go insane doing nothing." I decided to call my girlfriend, Megan, who was 18, to see if she wanted to go to the park. Usually I would've asked if she wanted to come over so we could make out and touch each other but it was way too hot to be fucking and I decided I wanted to go a bit slower with the relationship as I felt that I really liked her and didn't want to ruin it. The phone started ringing and after 4 rings she picked up. "Hey handsome, how's my boy doing?" she said to me. I smiled to myself and started having a chat with her. After about 10 minutes of us talking, I asked if she wanted to come out for the day and she told me she couldn't because of the amount of homework she was set over the holiday. Instead she invited me over to her house as no one was in except for her s****r and that she wanted "help with her homework." So I said yes and told her I'd be there soon. I'd finished getting ready and started walking to hers. I was excited to see her as I hadn't seen her in a week because I was grounded. I had missed her shit loads and I just thought of all the things we did that made me happy, so much so that I started ...

... thinking about all the stuff we had done in bed and instantly my dick grew hard.I thought of all the times when we would be tonguing and she'd grab my hand and place it down her pants to finger her tight, wet, smooth-shaven pussy, and the times when she would suck me off whilst I groped her soft, round tits. I tried to stop thinking about it because I was wearing shorts and I didn't want little k**s to notice that I had a boner; that would be weird. So I started thinking about weird and nasty things to take my mind off of it, but it kept coming back to me; all the sucking and fingering; I was rock hard. I soon arrived at her house and knocked on the door. A few seconds later she answered the door and I about came in my shorts right there and then! Megan was wearing the tightest, white top and no bra so I could see her soft, delicate nipples and was wearing tight short-shorts so her thighs and legs were exposed completely. She put her arms around me and kissed me as my dick poked into her as she came closer. "Hehe, I see someone's excited to see me" she said as she giggled and winked at me. I had wanted so bad to take it slow but she was so irresistible, I wanted her so fucking much. She took my hand and lead me up to her room. As we walked, we went past her s****r's bedroom. Her s****r's name was Amy; she was a nice and cute girl and always happy to see me; she thought of me as an older b*****r and l thought of her as a little s****r. Amy was exactly the same as Megan just a year ...