So my sister is now 7 months pregnant. She got pregnant on her wedding night if the doctors are correct. What she doesn't know is that given this, then i am the father of her unborn daughter.

At the reception of her wedding, both her and her husband got very drunk. They had a great day and a wonderful evening. As the night came to an end i let my parents leave since it was so late and i was to escort the newly weds to their room upstairs in the hotel.

After most people had left i shuffled them both along and found their room. I got them inside and sat them both on the bed. I went to the bathroom and when i came out they were both lying down, sound asleep. I figured i would just pull off their shoes and throw a sheet over them. I pulled off my new brother in-laws shoes and figured i should get his suit pants off. I pulled them off and left them hanging over the bed end.

I pulled my sisters heals off and i took a moment to feel her smooth skin up her legs. She is 19 now, really long sandy blonde hair, nice round baby face and a super sexy body. She did a lot of running and swimming so she was fit. I have had a thing for her since she was 14 and i was 20.

Anyway, i got her shoes off and gently rubbed her legs. I knew she was pretty out of it so i gently slid her around and hung her low body over the edge of the bed. She mumbled a couple of times, but nothing else. I rolled her onto her stomach, making her ass stick out in her beautiful, puffy wedding dress. She mumbled for my brother in-law and again was quiet. I lifted the huge amount of dress and layers up over her back, revealing her sexy little ass covered in a lovely pair of white silk underwear.

I knew i shouldn't, but i had too. I pulled her sexy panties down her thighs and dropped them on the floor. i stripped off my pants and got behind her. I held her tiny hips inside her dress and used my feet to open her legs. I pushed my cock into her tight pussy. I fucked her sexy little body, ramming myself as deep inside as i could, knowing her husband was asleep on the other side of the bed made it hotter and i pumped into my sister. I only lasted a couple of minutes and unloaded what felt like the largest load of cum i had ever blown into her depths.

I waited till i was ready and i fucked her a second time, making sure i held my cock as deep inside her as i could when i blew. Once i was done i got my pants on and i pulled her sexy panties back on her, pulling them over her leaking cum covered pussy. I slid her back up the bed, pulling her dress back down and lying her next to her husband. I left and headed home.

It was only 6 weeks later she came over to my house and told me she was pregnant and that it had happened on the wedding night. She told me that because my brother in-law got really sick on the first day of the honeymoon, that they hadn't had sex again after the wedding night. She also told me about the fact they they were so drunk that both of them didn't remember it, but they both remember the feeling of the bed shaking, so they know they did.

I'm over joyed to know this as it means i have gotten away with it and my sister is having my daughter/sister and doesn't know.

I have my younger sister to hopefully try and do this again with her in a few years time. She is 16 now, but i reckon she is going to be even hotter than her older sister when she is 19 or 20.