Sit Spot Hair Brush Spanking

Description: The sensitive area where a slave's ass meets his thighs contains many nerve endings. i've picked a particular wooden hair brush with stiff natural bristles to work over this particular spot. alternating between fast smacks and running the bristles over his backside, i can hear his breathing change. as my slave starts to shake i can sense his adrenaline and endorphins kicking in. though i definitely want to leave some of his backside left to indulge in sadistic intentions later.