Shoot his load.

John felt the familiar contractions in his balls and sped up his silent minstrations. Just as he was about to blow his load, Stephanie turned in the shower and saw him, and froze there under the falling water. But it was too late for John, he was over the edge and grunted several times as he came. His jizz flew out and landed on the tile and bath mat in several large, thick milky-white drops and John kept stroking until he was dry.

There was utter silence until Stephanie broke it.

"Ummm...John...?"