Mind you, the lady looks like she can take care of herself, but, who's lucky enough to get the key to her.. heart? (Heart first, panties later). They're Chastity Knickers, with tiny lock and key, by a wonderfully-named label, State of Undress. The encyclopedic site The Lingerie Post says the company, sadly is apparently no more. Take heart; you may still find a pair in-stock at sites such as this.