You are about to explode

"UMMM KELLY..."

She turns and sees your dick throbbing and red.

She quickly holds the cup back out for you.

"What are you doing? Do you want to pass out? Start stroking. Now."

Maybe because none of the blood is rushing to your head, you hesitate.

She reaches and grabs your cockhead. Without even so much as a stroke, the touch of her finger sends you over the edge.

The initial bursts shoot forward. Kelly angles the cup and catches it. You quickly fill the cup.

She snaps the lid shut.

"All done. You can go now."