You obey her, but you slow down and concentrate on her orgasm as you grit your teeth trying to hold back your own...
It's pure torture, as she fairly oozes sex and lust and your own orgasm is approaching with the swift inevitability of a jet fighter swooping in for the kill!
She urges you on: "Keep going! That's it! Don't slow down! Harder! Faster! Yes! Yes! Harder! Faster! FUCK ME, SLAVE!"