Start sucking that heel. Think of it as if I were sucking your cock, and try to emulate it. It's not that big, so I'm sure you can take it... and look at what a great view you get up my skirt!
Oh god, baby, you're making me so hot. Keep that up for a few minutes.
Have you ever been tied up before? One of my ex-boyfriends, I tied him up and rode his cock for two straight hours. I was aiming for three, but then he lost control and started to orgasm. I lifted off him right away, and the cum just dribbled down his cock while he begged me to touch him. I didn't.