Edmund White said this quote

Guy’s whole body was humming. Normally he thought only of his head – his eyes, his smile – and was aware of his body as merely the principle of forward propulsion trundling him along. But now he was all these bright pools of sensuality – his nipples, his half-hard cock, his tingling anus, even his feet. He was glowing all over and he felt the animal in him was longing to shed its clothes.