I was asleep, to begin with. There is no doubt whatever about that. It was 4:45 in the a.m. and I was stirred from my slumber by the sonorous buzz of Lo’s vibrator, the rhythmic rattle of the bed, and the blue glow illuminating her face that was so contorted with a look of singular focus and intensity that I thought I was seeing a ghost. She was lying on her tum, both hands buried under the covers and under her body, the phone propped up on…