She obeyed eagerly, stripping off her shorts and panties and sprawling across her bed. I took a moment to just look at her—flushed and eager and trusting me completely—before joining her.

"Spread your legs," I said, settling between her thighs. "And don't hold back any sounds. I want to hear exactly how good I make you feel."

Then I went to work.

I'd gone down on her once before, during her first time, but that had been about getting her ready, getting her wet. This was different. This was about showing her exactly how good it could be when someone actually knew what they were doing.

I started with long,...