At that point, Mei got up onto her knees and moved closer to me, just to my left and very close to Emily's lower half. I watched as she extended her left hand underneath Emily and down between her legs. As I looked down at my own cock, still plunging in and out of Emily, I saw Mei's fingers extending out toward me from underneath Emily. I felt her gently cupping my balls and then lightly touching the shaft of my cock, as if re-acquainting herself with tools she hadn't held in a long time. Then her fingers retreated, and I heard Emily gasp. I knew that Mei was now...