Sasha Grey being, well, Sasha Grey. - D
Never underestimate the power of a post-anal-sex meal.
I never thought I would want to do this with a partner. Then I met someone who asked me to, I tried it, and I discovered that I liked it. Then I met some more lovely people who liked it. Now, I always ask my partners if they want me to do it. They’ve all said yes.
Protip: use two fingers in your partner’s bottom so you have him more opened up. Then stroke his prostate with your fingertip, softly at first (almost a tickle), increasing pressure as you go. The additional finger will help give you freedom to move, which he will appreciate — sometimes going in and out causes a bottom to think he might have to use the bathroom, while stroking without moving in and out stimulates the target area better.