Help me find a story?

There was a story here on Zity that I enjoyed. There was a D/s scene where a guy recounted a bath time story. He would run a hot bath and while waiting for the tub to fill he'd cover a cotton swab in soap and put it in his ass. The babysitter (the cliche old family friend) entered the bathroom and scolded him for having the bath too hot. She also noticed the dirty swab and gave him a hard time for having such dirty ears until he explained his game. The soapy swab made his bowels move. He use the toilet and retire to the bath. She was amused and said she'd help him.

The D/s nature of the story is appealing but I can't find the story anymore. I think it was in Enemas or Age Play? Maybe Medical? Can anyone help?