F4M the professor, his wife, and his TA (you!) (An MFM fantasy)

It's the end of the semester, grades are due, and the nights are getting late.

Dr. Timbers, my husband, has been spending his evenings in his office, reading and grading the long essay exams for his undergraduate philosophy class, with the help of you, his trusted graduate teaching assistant. Tonight, you anticipate finishing the work and he had hinted at a surprise celebration.

You have seen me, Mrs. Timbers, several times throughout your graduate career, meeting me in the parking lot when I bring him dinner, walking with me to his office to drop it off. You've worked with Dr. Timbers since the beginning of your graduate program, so we've had plenty of opportunities to get to know one another.

Tonight is no different. You meet me in the parking lot, bringing along an umbrella at my husband's request, to keep me dry as we walk. We have to huddle together to stay under the protection from the rain, and the gentle breeze sends tendrils of my perfume wafting toward you, mixed with the smell of rain on concrete.

I'm a curvaceous woman, wearing a long rain coat that covers me from shoulder to knee, hiding what I might be wearing underneath, but the top button has come open. As you look to me to make some pithy comment about the weather in this town, you catch a glimpse of what might be lingerie.

We enter Dr. Timbers' office, and I round the desk to greet him with a deep, passionate kiss. You watch our interaction with interest, aware of his hand climbing the inside of my thigh smoothly, as though there is no clothing impeding his movement.

We kiss deeply, and his hand moves to undo the belted sash around my waist, pulling the two sides of the coat away from my body. We've caught and held your attention, and you watch with anticipation as he gently takes it from my shoulders, revealing what I've been hiding.

I stand before you, clad in a lacy black bra with straps crossing over my chest, a pair of matching high-waisted lacy panties, and my black heels. Dr. Timbers remains fully clothed, shirt sleeves rolled up to his elbows, standing next to me, watching you to see your reaction.

"You've been such a great help to me this semester," he comends you, holding intense eye contact with his deep green eyes. "You're obviously very dedicated to your work. I have told Mrs. Timbers about your assistance at length, and feel you deserve a reward for your hard work outside the normal bounds of a mere paycheck."

I speak up, my voice husky with desire. "I've been attracted to you from our first meeting, and I know you're a dedicated individual. If you're interested, I would love to have this experience with you. It was actually my idea to start with."

"This isn't a situation where I'm looking for humiliation or for you to outdo me," Dr. Timbers chimes in. "She is very special to me, and I want to share her with you. Are you interested?"

What happens next? Does the hardworking dedicated TA indulge with the professor and his wife?