Half sibling fiasco

Jeff returned with me to my Grans, leaving Zachy and Tricia to have a life together. 

Weeks after we started to stay at grans. Gran came to sit with me while preparing for another night in with Jeff. I realised Gran wanted to talk and as Jeff was still in the workshop I welcomed her time.

 She asked if Sue ever told us who she thought our father was. I asked her if she knew as Sue always said she was unwilling to take a DNA as one of the men paid her University tuition. 

Gran said that was true, as Sue had a regular boyfriend and also played around with an older man. It surprised me she was raising it now after all the time we had lived together.

Gran said she was concerned about my twin sister Tricia and Zachy as she strongly believes they are half siblings. She was therefore surprised that Sue had not said anything about the two of them. Gran was convinced that both her twin granddaughters were unknowingly in an incestual relationship.

Sue was the babysitter for Zachy and Jeff’s widower father, Conrad since she was 16. He started to pay her a lot more after she was 17 for her babysitting duties. Gran knew that Sue was already fucking before this and so Conrad was only too happy to take his chance.

When Conrad returned from business trips he often brought back expensive gifts for Sue and when she got pregnant, he paid for her care and gave her allowance to continue her study.

When Conrad retired and moved to Spain, he did not expect Sue to entrap Zacky with her cunt. Gran said Conrad got in touch recently to confess he was their father and that his silence has caused the problem of his two groups of children to start this horrible problem.

I told Gran it was too late for Zachy and Tricia as they were getting married shortly and expecting a baby.

I then told Gran about the threesome with Sue and Jeff. That Sue did not hint at it and that it meant she has fucked the father and two sons. 

Gran asked what I plan to do now with Jeff, my half sibling. 

Jeff came in shortly after and before dinner, he pulled me into his arms and we kissed in preparation for a good fucking.

I was thinking of how to tell Jeff about our relationship but when he began kissing the back of my neck and squeezing my tits before putting his tender lips on my nipple. I let go and sank into the joy of fucking. I kissed and sucked on his cock and licked his large balls. He carried me on bed and his stiff cock large and hard before my face. I pulled it deep into my throat while Jeff licked and fingered my cunt. We stopped so I can slip his cock in while I rode it deep into me. He pulled me close to have my nipples close to lick while I bucked on his hard cock. He cupped my breast and kissed each before he sucked the nipple to have me tighten my cunt on his cock. He flipped me on my back and drove his muscled cock deep inside my cunt. We fucked hard and fast until he emptied his cum inside me like we do.

While his cock was waiting to slip out, I broke the news to him. That my gran believes we are half siblings and what should we do. I thought the news will shock him and his cock will go limp. Instead, Jeff’s cock started to regain stiffness and he began drilling into my cunt again. I asked if he heard me that we were being incestuous, but Jeff banged in and out of my cunt and the knocking of his heavy balls was vibrating my pussy lips

 He finally finished with a second cum and he pulled out and panting, he said I will not stop fucking you because you are my sister. Your pussy loves my cock and my cock only wants to fuck you. 

I returned to see my gran, to tell her what we have decided, she hugged me and said it was meant to be and that whatever happened we should know we have her support. 

Sue invited Jeff and me over several times for the threesome when her partner was away. I told her what gran had said, she simply shrugged and said lets fuck. 

Jeff and I did continue to fuck and years later we had our own sons and they seemed just fine.