I like it.

I'm 75 years old and can get an enormous boner. That being said, this has to do with my grandaughter's best friend coming over with her to visit me. I live alone now that my wife has passed. The girls (both in their early twenties) clean my house and cook meals for me a couple of times a week. This friend of my grand kid has taken to giving me back rubs. I got to cross my legs because this gives me a boner. Hard to hide it and I'm sure this girl has seen it. I feel that she is playing with me. Kind of cruel but I like it so much I can't bring myself to protest her back rubs. Is it normal for a young woman to toy with an old guy like this?