My Sister Marilyn

I'm David 30 single and I have only one sibling a sister Marilyn 34 divorced. Last March Marilyn lost her job due the company closing down. Being the only family member close by she turned to me for help. She was so indebt, that when she paid off everything she only a dollar left. Even waiting for unemployment wasn't an option, as it would be at least a week or more before she would get anything. I work my own online business and do quite well and have a small 2 bed cottage. Marilyn was so broke that I had to go and pick her up and bring her back to my place along with all her stuff. She was really down and having just lost her job and her divorce was final last year. It was piling up on her and her self esteem was at rock bottom. Her ex husband and her just split everything 50 50 with no children, not that they were well off before the divorce. Marilyn started looking for a new job, but nothing she could do was available at the time. I offered her some money to help her and she cooked our meals as well kept the house for me. Not that it was a big job, I've always been neat and tidy from a young age. But as the days passed she got more down hearted. I took her out to the movies a couple of times, but her mood didn't improve that much. Then one day she was out shopping and I was a little horny and watching porn on my computer, I started to play with myself. I didn't hear Marilyn return and she walked into my room to ask me if wanted anything as she was making a snack. Catching me cock in hand, she just asked me if I wanted anything with a sly grin on her face. I nodded and she left, after putting away my now deflated cock. I went out to hear her smartass comments about catching me. But she didn't say anything, as I finished the snack she made. She asked me if I could assist her, I asked what do you want me to do. She replied me, I'm horny as hell and could use a good fuck. At first I thought she was having a go at me, but she was serious and seeing my disbelieving look. She totally undressed in front of me, I was still a little shocked from her request and undressing and she took hold my hand and led me to my bed. She started to undress me, when I finally decided she was serious and helped remove my clothes. We fucked and then laid together for a while and then I decided to try for another fuck and she let fuck her again. Since then she has slept with me every night and has missed her period twice, she has gone to get tested and we will soon know if she is pregnant. But having already discussed it. If the test are okay, she will have the baby. If not pregnant she will take precautions, but still fuck me. We both enjoy the sex and are happy together.