I returned home to help

I'm Christian 28 single and only child of Bruce 51 and Danica 47. I work from home now and help Danica with Bruce who was left in a wheelchair after a traffic accident and also has brain damage as a result. Danica is his full time nurse and I'm there to help with moving and bathing him. I have never been a ladies man or anything close, but have had a couple of relationships. Since moving back home I've caught up with some old friends and they are all married, so we can't do what we use to do before I went to university and the city to live. But we do get together every now and then, a month after my return I was in my room and watching porn on my computer. I got a hard-on and started to masturbate it, when Danica came catching me cock in hand. Bruce had soiled himself and she needed my help to change and bath him. She just asked for my help and left my room, I put away my cock and went to help her. After Bruce cleaned up and redressed I decided to shower myself and Danica joined me in the shower totally naked herself and started to stroke my cock. My cock got hard and she thanked me for my help with Bruce and asked if I could help her as well. I replied anytime you want and with that she went down on me and started sucking my cock. I came in her mouth and she swallowed it all and said we should go to my bed. We fucked twice that day and I started to fuck her almost everyday since. She wants me to find a girlfriend, but also wants me to keep fucking her as well. Last week Bruce had a stroke and is recovering slowly and Danica is sleeping with me every night. Bruce, we were told has a greater chance of more strokes and may need to be put into care. His insurance company has said he has full coverage for that due to terms of the settlement from the accident. So for now I fuck my mother Danica and am happy with that.