"Just humor me, okay?" I ask, opening the book. "What page are you on?"

"P-p-page one t-t-twenty t-t-t-two," he answers, still staring, wide-eyed at my bikini clad body. I open the book to the right page and read something about Quotient Rules and Higher-Order Derivatives.

"Okay, good!" I say, more confident than I feel as the tingling dampness in my pussy starts to distract me. "Explain this to me," I say as I squeeze my legs together and try to ignore my own arousal.

He reluctantly pulls his eyes from my tits and focuses on the textbook. Hesitantly at first, and with a considerable amount of stuttering, he starts to...