Your Step-Mother has walked in the room to find you masturbating wearing a pair of her nice white satin panties. You had got them out of the washing basket and you had been sniffing them before putting them on and wanking. She is appalled and scolds you for being a "dirty wanking pervert". She threatens to tell your step-father and orders you to collect any other missing satin panties and give them back to her. She will be back to collect them. When she returns she has changed into a satin blouse, satin skirt, stockings and high heels. She tells you she was a little flustered by what she saw and it turned her on. She noticed that is was only the satin panties you had been stealing, so dressed in a full satin outfit for you. She lifts her skirt to reveal she is wearing the satin panties you just took off! She tells you to keep this a secret and she'll show you what she likes to do with her satin panties. On the bed she rubs her pussy through the panties and pushes her fingers deep in through the satin making them all wet. She then pushes the panties into her asshole as well. Talking all the way through, she then gets a dildo and pushes the panties into her pussy and ass with it. She then takes off the panties and puts them on her head. She sniffs the crotch, smelling her pussy and asshole on the panties while she fucks her pussy with the dildo until she cums. You are then given the sopping wet and smelly panties to clean as a punishment.