"How about an exchange deal"

"Watching your kids is really not a problem," Jenny says. "However, I have some other problem which I think you may be able to help."

"So what is it?" I ask.

"How about an exchange deal?" She proposes. "Instead of paying me to babysit, is it possible for you to bring me to the hospital every night at ten? You see, I have night duty as part of my school requirements, and I am sometimes late just waiting for a taxi."

"How long will you be having night duty?" I inquire.

"Just for a week," she replies. "And I can babysit anytime you would like, as long I don't have classes." With a whisper, she adds, "I have also other skills."

The opportunity to have more time to be with Jenny makes my cock harden. "It's a deal," I say.

She squeezes my arm. "Can I have your phone? I'll add my number," she says. As she reaches for my phone on the dashboard, she discreetly pulls up her silky sheath dress. She smiles approvingly as I steal a sideways glance at her white, cotton G-string.

When we arrive at school, I unlock the doors and Alex, Alice, and Karla file out the car. Jenny leans over and squeezes my thighs, her fingers brushing over my hard-on. She then gives me a light peck on the cheek. "I haven't brought my phone, but can I also have your number?" She asks, hiking up her dress even further, fully revealing the triangular patch of cloth of her G-string.

I pull out a pen from my breast pocket and write my number on her left ass cheek instead. "You also have to write on the cloth," she says. I comply and hastily re-write my number.

"Thanks," I say, as I wave at her and drive away.