Brenda snuck into her little sister's room and switched up her bra with the slave bra. Brenda was very jelous of her little sister, she was only 13, but she was as developed like a 19 year old. Brenda on the other hand was 17 and was developed like a 15 yearold. People were always mistaking her for the younger sister.
Brenda waited for her sister to wake up the next morning. She put on the master bra and panties and went to her sister's room and stared into the crack in the door. Her sister Trina had just finished putting on the bra and panties. 'OK' Brenda thought to herself. How does this work? She consentrated but nothing happened.