Slow stroking

The Nurse who is enjoying your penis seems to be gaging your reactions whiles she slows down. Not to slow, that would break the rules. Her hand from the base of your wanting penis has a firm grip, the lube has not even started to dry yet. You take a deep breath as she slowly slides up. You can feel the blood filling the crown of your ever sensitive penis. Each finger brushes past the ridge of your corona causing a surge of pleasure.

You tense, expecting her to stroke back down. She doesn't stroke down at all but uses her second hand to stroke slowly upward again. There is a soft giggle as her grip tightens and pulls out the pre-cum from the tip and adding it to the already slickness that is your penis. You are enjoying this, but you need to hold out.