Hands on head!
Let it twitch around in desperation for a minute, then give your balls 5 hard ball slaps with your hands.
Why?
Because. You weren't near close enough, slave. I don't just say these things for your amusement, I expect you to follow my instructions to the letter. You should have been seriously teetering on the edge of orgasm. I should have heard much louder moans and groans.