"Mama,it's foot,"

Last Sunday, hubby generously got Ava a horse toy which she can ride and rocking on it.
So yesterday Ava was trying to get her both feet on the saddle and I tried to help her.
"Ava, that's it, put your leg on the saddle,"
Ava looked at me and there was a pause,then she answered.
"Foot,"..
Ops... "hrmmm, yes, I mean your foot,"