The Promise

Almost 2 years ago my only brother Keith passed away from cancer, his wife Maria 28 wanted a children. So she had collected sperm from my brother before he started treatment for the cancer and it was frozen for later use. Just over a year after it had been frozen Keith passed away, this left Maria devastated. I promised to do what ever she needed to help her. Maria thanked me and we went our separate ways, Maris waited several months before she thought about using Keith's stored sperm to get pregnant. But it proved to be damaged by the storage process. This upset her a bit but there wasn't much that she could do about it. Then about a month later I met Maria by chance, I was travelling thru and had some car trouble and was getting it fixed. While waiting I walked down to a nearby shopping center to get some lunch. I bumped into Maria at the center, she was happy to see me we had lunch together. I'm David 28 single and while we talked about everything in general. Maria told about the damage to the sperm samples, I told her I was sorry. Then as she walked with back to check on my car, she asked would I donate some sperm for her to have a child. Adding I had promised at the Keith's funeral to do whatever she needed. I remember I said and let me know when what me to provide the samples. Okay she replied, adding on your way back home you could stop by and donate the samples. Okay I said I will and a short time later I left. On my way home I stopped by to see Maria with the intent of donating some sperm. Thinking we would go to clinic and I would do my donation and then head home. But Maria had been thinking and was concerned that as Keith's donation had been damaged by freezing, my donation might also be damaged. So when I arrived at her home, she told me that a straight donation might be best. I was shocked at first, but Maria is a good looking woman. My cock started to harden on thinking about. So I agreed and she asked me to stay a couple of days, I agreed and rang my employer telling him I would delayed a few days. So we went to her bed and had sex and later more sex, I really enjoyed the sex with Maria. I really liked Maria, but didn't tell her about my feelings, after 3 days I was on my home again. Several weeks later Maria saying no luck as yet and wondered if we could try again, No worries I said I will let you know when I can get down to see you. No, I'll come to you and stay until I get a positive result she answered. Okay I said and Maria arrived 2 days later. Staying and sleeping with me and after 7 weeks she had the first positive sign on a home testing kit. During the following week she had a test by a doctor and she was pregnant. We had gotten really close during our time together, that I had to ask her to stay with me. No reply at first and then she said she would have to think it over. Several days later she said she would go back to her home and pack up her things and sell her house and return to live with me. I was delighted and it was a long wait for me it seemed, but it was only just over 4 weeks. With her house under contract, she returned and we slept together from the start. A week later I asked her to marry me and agreed. We didn't wait we married the following week and with baby being a boy, we plan to call him Keith.