Adventskalender dag 20: kuisheid plagen en ballen slaan

Today I tease my slave, struggling in his chastity cage. I want him to be frustrated as much as possible for the last day of the Advent Calendar because I'm preparing a nice surprise ! I ask him not to moan when I'm teasing his caged cock but he just can't because he is too excited and his cock is trying SO hard to push the cage away ! Too bad, he will have to wait a little more before being able to have a ruined orgasm...