Does he have foot fetish..?

Well I have that sex partner for over 3 months, and almost every time we met I found him ending up licking my foot and toes in the middle of the sexual situation.. I never complained about it, and never put too much thoughts about it until last time when he kind of use his feet instead of his hand to an hand job.

I know this is a silly question because yes, he probably has a foot fetish which I'm not complaining about, but since I don't know too much about the subject I just wanted to know if it's commona and if he does..?