bedroom unpleasantness
Sexual intercourse.
Roger: "Henrietta, I must insist, if we are to propagate the family line, you're just going to have to jolly well buck up, lie back and think of England."
Henrietta: "Oh, Roger, I thought you'd never ask! Let's head upstairs for some bedroom unpleasantness forthwith"
Henrietta: "Oh, Roger, I thought you'd never ask! Let's head upstairs for some bedroom unpleasantness forthwith"