Keep going.

Seeing (and hearing, and feeling) how positively I react to what you're doing to my pussy makes you want to keep going. Hey, I don't mind. It's your money.

Your slobbering and gentle suckling on my engorged little clit makes me moan, and gasp, and whimper. I bite my lip and grope my own tit through my dress as I spread my legs wide for you. Somewhere along the way, you begin to feel my hand on the back of your head.

You think I might actually be getting close to orgasm.