Is it normal for a care giver for elder man to have sex with him?

I am an elderly man who is confined to a wheelchair and can not bath myself. I have different care givers that come for different reasons. One comes to give me a sponge bath and Cath me, another for cleaning my home and making meals. The woman who comes to give me a sponge bath in bed is in her late 30's , large build, very Large breast's. She would wear loosely fitting shirts where I could see her huge breast's very easily. While she was giving me baths I would get a huge erection, mind I would be laying totally naked. She would not say anything at first but then she started using her soap lathered hands to wash my cock and balls. No words were exchanged but she started wearing even more revealing clothing. One day I just blurted it out "could you take you top off all the way for me". And she did ,,,,and then held my stiff cock straight up , stroking it up and down, one hand playing with my balls. She would do this everyday for 5 minutes or so. Then a couple weeks later she leaned over me while she was jerking me and said "now ,, I want your cum all over my tits,,, she kept pumping my cock, playing With my balls until I shot a huge load all over her huge tits. Cum was starting to ooze down onto her nipples. She said here,, lick this as she pushed one of her huge tits against my face. I licked up the cum from one of her nipples. She said that's enough and cleaned up the rest of the cum with her finger, and licking her fingers clean. She finished my bath and left. Now she still is my care giver and continues to give me baths but always with her tits hanging out . and once or twice a week only she will eat my cum.

Is this normal? Has anyone had any sexual thing going on with a care giver?