Fiddle Bondage Spanking
If I’m not mistaken, that’s a metal fiddle restraint (a sort of portable stocks) that’s keeping this nicely-dressed woman from reaching back with her hands to interfere with her spanking. It must be a real bad habit of hers!
Photo is from Absolute Surrender, a BDSM scene available from Kink Unlimited.
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Hermosa imagen!!
She looks very relaxed.