"Look at my little brother, erm... I mean my little sissy: I wear open panties every now and then, so that you can always fuck me well with a strap-on attached to your chastity belt - without being able to have an orgasm!"
"This is my sister Doro, and I always have to wear her padded bras, which have now become too small for her. She always puts the key to my chastity cage in her panties. This way, she makes sure I do what she wants! Soon she wants to go shopping for sexy lingerie with me."