Nasty brunette makes obedient ballerina Diana make acrobatic stunts

Diana is a flexible redhead girl in a ballerina dress. She is like a living doll, silent and obedient. Her brunette mistress literally can do anything with Diana. So, at first the mistress puts Diana on the floor and makes her do the scorpion stunt and a backbend. Later on the mistress undresses her personal doll because she wanna see Diana's little titties and smooth pussy when she does all kinds of acrobatic stuff.