I'm 45 m, my sister is 43 f. When we were younger still living at home dad would use us both, so I was taught that I was there to give pleasure, not put my cock in people or even cum by myself.

Sis and I would talk about dad pretty much everytime he came to our rooms, and we couldn't help getting excited, partly because it was our secret. She helped me learn how to touch myself, and made me realize I deserve to feel good and cum, not just be dad's bottom.

Sometimes we would help eachother get started or finish, but mostly we just described experiences and shared feelings while touching ourselves, I can't explain how much she helped me feel ok about what I like and who I am. Not a normal relationship for brother and sister to share but we really love each other and she helped me through so much dark times