Watch her pick it up.

You walk over to her book and straddle it. She hardly notices you there as she bends carefully in her tight skirt to retrieve her book.

As she grabs it and tries to stand, you put your hand on her shoulders.

"While your down there.... you might as well..." you gesture at your hardening crotch.

You know it's an aggressive step but you sense she is ready for it. Besides she needs a ride back to her car and your the only one around.

"Oh my god..." she looks at you then at your crotch.

She puts her book back down and reaches for the buckle at your pants. You look around and make sure no one is nearby.

She snaps the pants and begins to unzip your fly. Your cock flops out and lands on her head.

"who...." she stammers and nearly pulls away but you keep her clamped and close to you.

Your cock stretches from the top of her head, across her forehead, across her nose, over her lips leaving your balls dangling on her chin.

"wow..." she licks her lips and looks up at you.

"That's right... you know you want it..."

"Suck it"

She puts one little hand on your cock and tongues just the tip. You ooze pre-cum into her mouth and over her red lips.

She begins to take you in as you reach down and play with her big titties. Her nipples are hard as rocks.

She can get about half of your cock into her mouth before you can feel your head touching the back of her throat. She is trying hard not to gag but it is obvious you are way bigger than anything she has ever had. In any of her holes.