There we are, in your correct place, at my feet. Get down and kneel before your mistress, you chin on the ground and your ass in the air. This is the position for all foot worship. You can take your panties down a little and stroke through the middle of your legs from behind. I know it's painful but you get to worship my feet so no complaining!
Why don't you practise on this photo of me on the left, then continue.