I am 50 and was online dating a 23 year old guy. We were really close and get along very well. He was a virgin, and I think he felt good for having me to explain things to him.
We were together for 7 months, and when the time for meeting in person came he broke up with me. He loved me a lot, but was too afraid of being touched.
I am an experienced woman, and I've never met in my life someone as sweet as that guy. Even if we didn't make love personally, doing it online made me feel extremely happy. I am bipolar, so when I am happy I am extremely happy. I enjoyed so much his romanticism, and when he broke up with me I fell into this horrible depression I am at present. One of my most terrible fears is that I won't have the chance to date a young guy again.
I don't have children, he was not treated as my son, but his youth turned me on.
I am not sure you are looking for a mother figure. Perhaps you just want a woman who can initiate you into the depths of loving making.