For inner thigh you might try the cable machine. PF should of the loop to attach to the low cable end (the one you would use for upright rows). Loop around an ankle the set up with a wide standing(a little wider then shoulder width) stance with shoulder on the loop ankle side facing the machine so you have tension on the cable, (the plate stack slightly lifted, then bring your looped ankle to your other foot, focusing on isolating and using the inner thigh as much as possible.