Sing when you are winning - or sing when you are in pain. I guess both could be true for this clip. For sure winning, as being dominated by the sadistic UK Mistress Mera and Mistress Clarissa. For sure in pain, as you will hear from the "song" coming from the slave's mouth. Learn how much the slave's private parts can be stretched and more. A scene with a mix of heavy CBT and corporal punishment. Enjoy!