While in chat last night with one of my favorite pixettes, we talked about a fabulous but little discussed sex act which I love and at which she is seemingly extremely gifted. The penis partner lies behind or on top of the ass partner and rubs his cock between the ass cheeks while the ass partner flexes his or her glutes and the flowing precum provides a smooth ride.

What do we call this? Two preliminary names she and I came up with were "ass milking" (her suggestion) and "bun buttering" (mine).

What are your thoughts on this pressing (hmmm) issue?