Bound and folded in half

Since SCP-239 was already tied and folded in half, John decided to not mess with Dr. Clef's good work and keep her in that position. Removing the vibrator, he took up position in front of her greedy pussy. SCP-239 whined in response to feeling the tip of the fat cock at the entrance of her needy pussy, wordlessly begging for the veined rod to penetrate her.

Without warning, John slammed himself inside her, driving SCP-239 crazy, moaning without control as he pistoned mercilessly, her face instantly contorting into a permanent expression of lust. He kept a fast pace, taking advantage of her position and fucking her in that mating press without care or worry. SCP-239's eyes rolled up as the first orgasm rocked her body, her back arching as he continued to fuck her.

"Take it, you slut", John said. "This is where you belong, whore. Beneath us, getting your needy little snatch stuffed. This is what you want, isn't it?"

But SCP-239 was not paying attention, her eyes rolling into the back of her skull in pleasure, her mind going blank and focusing only on the pleasure coming from the veiny throbbing cock penetrating her. She was content, happy, constantly aching for release, getting used like the cumdump she was. She orgasmed again and again, her internal walls gripping the dick currently using her, and soon enough John was cumming inside her.

Once he was done, he zipped his pants up, and having done his part in containing SCP-239, he returned to his office to gather his papers for the actual work of the day.