As Catherine learned later that night [her wedding night], Russia makes strange bedfellows. Peter got into bed with his boots on, played with his collection of dolls for an hour or so, and told the Grand Duchess about his new mistresses. He had no mistresses, really, but he thought he had. It was all in his head.
The Decline and Fall of Practically Everybody (1950) - Part IV: A Few Greats - Catherine the Great