Jerk off on my command, foot slave!

Mistress slave has a very big obssiesion when he sees her feet, especially covered in beautiful stockings. she allows him to touch himself with her stocking in his hand, but there is one rule - only when she say that he can. she controls his masturbation, showing him beautiful, small feet and kicking his balls. she ties his hands and laughs so much when he can't touch himself, because of his big belly. does mistress give permission for him to cum?