That was an exceptional break from work.

The next day, your wife surprises you at work. She's brought you lunch, but you can see she's here for... something more. She was all over you this morning, desperate for more after yesterday's long session. Your hours-long facefucking of your wife wore away most of the sensitivity of her gag reflex, but she needs a little more... precise training. You lean forward in your chair and press the button on the intercom, instructing Gemma to come into your office.

"Gemma, strip," you command, freeing your cock from your pants. "Teach Rebecca how it's done."

Gemma's clothes slip off her in an instant like they were made of liquid, and she's between your legs in a flash. Rebecca's jaw drops, processing what's happening right now, and connecting the dots to what's happened between you and Gemma these past few months. After a moment's hesitation, she begins to remove her clothes, and sinks to her knees beside Gemma, her eyes flicking between your cock and her face, waiting for instructions. Gemma wraps her fingers around the base of your shaft, holding you steady as she turns to Rebecca.

“First rule: relax your throat,” she says, her voice soft and instructive. “You can’t take him all the way if you’re tense.”

She demonstrates, parting her lips and pressing the tip of your cock against the back of your throat, her eyes locked on Rebecca’s. She takes Rebecca's hand and pulls her fingers onto her throat, letting her feel how relaxed her muscles are. She pulls you out of her mouth, grazing the tip with her upper lip.

“You start slow. Let him fuck your mouth, but don’t rush it.”

Rebecca nods, her breath catching as Gemma guides your cock towards her lips.

“Open,” Gemma commands, and Rebecca obeys, her lips parting as Gemma presses the head of your cock against the back of her throat. She's inexperienced, and her movements clumsy, but the sight of her wrapping her lips around you has you groaning.

“Good girl,” Gemma murmurs, her hand stroking the part of your shaft your wife can’t reach. “Now, breathe through your nose. Always remember to breathe. And relax.”

She leans in, her lips joining Rebecca’s around your cock, the two of them working in tandem - her tongue swirling around the base while Rebecca takes more of you into her mouth, gagging slightly, her lips stretching around your girth.

“That’s it,” Gemma coaxes, her fingers massaging your balls. “Take him deeper. All the way.”