Today we're celebrating Fiona her slave his birthday! We were waiting in the bedroom with the 3 of us (Mistress Fiona, her slave girl & me). The birthday boy walks in & is really surprised by us! We ask him to lay down on the bed & relax. We're teasing him like crazy!! We're using a vibrator, we're kneading his balls, shaking his chastity cage & Noortje is even licking his balls! He's about to explode, but even on his birthday he is not allowed to cum...