Kat Dior says you better not spurt unless its under her command. She gives you a lesson on how to keep you hard cock at the very edge of ejaculation. She wants to extend your pleasure and does so by stroking your cock up and down, following your extruding veins and rubbing around your cock tip. Even as your legs tremble and your body spasms, you must not cum because if you do she will suddenly stop, ruining your epic orgasm in the process.