Edged the whole 51 minutes then pumped deep in her ass
Fifty-one minutes is a long time to be edged, and she was edged masterfully: slowed down at the top of every wave, stretched gradually and told exactly when she could beg louder. By the time he finally lets go, the build up turns into a flood, pumped deep in her ass until her gasping delivers the review itself. The runtime is the whole point.