Bound and helpless, the sub is at Mistress Sheridian's mercy. She teases him mercilessly, running her fingers along his inner thighs, tracing his balls, but never giving him the relief he craves. When she finally pushes her fingers into his ass, he moans in ecstasy, only to be met with her harsh command to stay silent. She fingerfucks him roughly, using him for her pleasure, making him beg for release, but denying him until she's satisfied.