Write a story about a guy named NAME_1 and his girlfriend NAME_2. NAME_1 secretly uses NAME_2's high-heels to masturbate. He thrust them into his anus until he cums. One night NAME_2 catches him in the act. She joins him. She uses her feet to pleasure his anus and penis. With a loud cry NAME_1 had a powerful orgasm. Use direct speech. NAME_2 talks dirty to him the whole time.