Cara shivered but The Mistress couldn’t tell if was from fear or pleasure. Probably both.

“You’re about to kill your poor wife, you know?” The Mistress nodded toward the area of erotic torture.

“Well...I am pretty fond of her. Can’t have her dying,” Robert said before plunging the vibrator deep into her.

Something bordering on a scream of ecstasy emanated from Cara’s throat loud enough to send both Robert and The Mistress laughing. Inflicting pleasure could be nearly as enjoyable as inflicting pain. And often just as humiliating for the writhing submissive.

Robert fucked his wife long and hard with the vibrator, plunging it into her over and over again. He pushed the tip into her G-spot, shoved it deep into the back of her vagina and pulled it out to massage her labia once more. As much as she panted and moaned, Robert didn’t let her orgasm. Vicious man. The Mistress wanted to give him a medal.

“You want to come, don’t you?” Robert demanded as his wife’s hips moved in desperate undulations.

“Yes. Please, Sir,” she begged. The Mistress heard real need in her voice.

“I’ll let you. But not with this. You come on my cock alone.”

“I want it so much.” Cara’s fingers dug into the sheets and a series of barely articulate pleases escaped her lips.

“Keep begging and you might,” Robert said as he untied Cara’s ankles from the bedposts. He grabbed her arms and pushed her onto her stomach and then pulled her legs to the floor.

“Please, Sir...” Cara said as she spread her thighs wider and lifted her hips by way of invitation. Robert slapped her hard on the bottom again, and she inhaled in surprise. The Mistress could tell Cara wasn’t used to being touched by Robert without any sort of warning. She seemed to like it.

Robert opened his pants and gripped his wife by her hips. Every inch of him disappeared into her wet and waiting body. As he thrust into her, Robert ran his hands over Cara’s back, which was now marbled with red welts. He touched them lovingly, tenderly, even as he pounded deep into her without mercy.

After a minute or two he pulled out and forced Cara onto her back again. Her ankles met his shoulders, and his hands held her thighs as he entered her once more.

“Nice. Deep penetration,” The Mistress said, leaning casually against the bedpost and thoroughly enjoying the show. “Are you trying to give her cervix a black eye or just going for a blow job from the other direction?”

Robert took the hint and lowered Cara’s legs, letting her wrap them around his back. He slipped a hand between their bodies and teased her clitoris with his fingertips. Cara groaned with pleasure. She found his forearms and held onto them as he pushed into her.

The Mistress watched as Robert gazed down at his wife’s face through half-closed eyes.

“You have a beautiful piece of property there.” The Mistress inclined her head at Cara’s writhing body.