He plays out the scenario

Miles and I were IMing last night. I told him that I had a request. He said sure, what is it? I wanted him to cum on my breasts. It was getting late so we said our good nights.

This morning I get an email from him. He said all he could picture in his mind last night in bed was him fucking my pussy while holding my legs spread apart in the air. He visualized pumping in me enjoying the feeling of his hard cock moving in and out of me while he hears my moans of pleasure. Eventually I cum and when I do, it triggers a switch in him. He pulls out, grabbing his cock in time to aim his load in the desired direction, filling my chest with his hot cum.

He watches as I..."finish for me, tell me what you would do at this point".

I responded with this:
You watched as I..wait for you to shoot all your cum. Then I lick the tip of your cock, tasting your sweet juice. Looking up at you, I give you a look like "may I suck it?" Or will that put you over the edge. Instead I stroke it gently and give a quick lick of your balls. Slowly my tongue makes it way up your cock and then I cover my mouth of it and suck you slow feeling you get a hard. I stop and with a devilish grin I say "now fuck me doggie baby". You stand at the edge of the bed and grab my hips and pull me close as you slide in. I moan as you are inside...

He writes back "I knew you would never disappoint me!!"