A noise came through the baby monitor. Graham glanced at the screen to the side, saw movement in the crib, slow but accelerating, hips rising and falling, pushing the thick diaper against a hand in a rhythmic motion.

“Oh no!” he said, “I’d better go and stop that.”

Violet looked at him from across the room. “Stop what?”

“Come and look,” he said, pointing at the screen.

As Violet walked over she heard the moans coming through the baby monitor, now interspersed with short pants. She saw on the screen the hip movements, now going faster, reached out and grasped Graham’s upper arm, halting his movement towards the door.

“No,” said Violet, “this is good.”

“Good?” asked Graham, “We’re training her to be a baby!”

Violet looked at him, an odd smirk on her face as she nodded. “Yes,” she said, “and now our gorgeous baby girl is associating pleasure with a wet diaper.”

Graham looked back in surprise. “Oh, that’s evil,” he said, stepped closely to Violet and gave her a firm hug, bending his head to kiss her, lips meeting eager lips.

The panting and moaning on the monitor subsided, replaced by small gasps and moans in the room itself. Violet didn’t know why their victim’s arousal had caused her own, didn’t care, enjoyed the moment. Enjoyed knowing that this situation would repeat, be a part of their future lives together. She drew Graham over to the couch and…