Is it normal to smell the feet of a girl ?

I was in her beach house, we were alone. She, and me, a boy(18 years old both). I was giving her a massage, and when she wasn't looking, I smelt them. I liked it so hard I need to do it several times. She noticed, but she let me. She was in the sofa and I was in the floor smelling them, I almost cum. Since then, I've masturbated thinking in this almost every night.
Aditional data: I was in love with her, she wasn't in love with me