I am sometimes into male feet however it depends on how they look and how their feet look. I don't really like the thought of worshiping a muscly mans feet however a skinny guys feet I might be slightly attracted to. It is mainly just girls feet I like though...
What do I like about feet? Well for me I think it's the idea that the feet are the lowest point of your body and if you are worshiping the persons lowest part, it means they are completely superior to you, like even their lowest part deserves to be worshiped by you. But also, you don't tend to see feet very often so it is kind of a special thing when you get to see them, it means that the person is comfortable with you. It's sort of similar to them being naked or half naked in front of you. Besides that I think girls feet specifically tend to be really cute because they are small and soft and normally smell good! (To me at least!)