Breeding my Sister

I'll call myself Jake and my sister Jenny, our father left us when Jenny was 7 and haven't seen or heard of him since. When Jenny was 16 our mother, I'll call Becca tested positive for lung cancer. I'm 4 years older than Jenny and was working full time and was supporting the family since Becca first got ill. At first the signs were good; Becca went into remission as the doctors called it, but the cancer returned more aggressive and Becca pasted away after a 18months fight. Then Jenny and me were alone no family we could rely on, and Jenny started working at a diner to assist me in supporting us both. She had been Becca's carer during her cancer fight and had recently turn 19. I got an offer of a better paying job and it meant moving to another state. The job came with a house for any married employees. Not wanting to rent miles away from my new job, I said I was married. A small lie, but worth it I believe, Jenny was willing to play along and started wearing mother's rings. The job was outside a large town about 35,000 residents according to sign on the way in, but small enough for you to be known by most of the residents. Also, a very strong church going population. So, no dating for me or Jenny and a week after we arrived Jenny turned 20. We acted like a married couple planning to stay a few years built up our bank accounts then relocate. But things didn't go as we expected them too, not that the town people weren't good to be around or something bad about the job it's great. Hormones, our hormones seemed to increase, and one thing led to another as they say. So, Jenny and I became lovers taking every precaution each time. But after being at a friend's family wedding, we'd overindulged in the celebrations. Getting home and both horny, we fucked at least once, twice maybe more, our memories are a little clouded about how many times we fucked. Anyway, no precautions were taken, result Jenny got pregnant and once it became known everyone congratulated us. Told by her doctor the baby was healthy Jenny decided we should have the baby. Instead of moving away as we were thinking about at the time. So now our baby daughter Rebecca after our late mother has just turned 2 and Jenny is again pregnant. No plans to relocate anymore as we're quite happy living here and acting as man and wife.