Mistress Valentina is hot and naughty. She was going away for a few days and she knew her man would be tempted to have sex as he had a high sex drive. So she had him wear a chastity device. The guy thought that she was being naughty but it turned out that she was tricking him to wear a chastity device whose key only she had and he would not be able to use his dick other than to pee.