Princess Plug
A buttplug of various size, typically made of metal that has a fake gemstone at its base (occasionally shaped like a heart) that adds some bling to one's buttocks. These plugs are typically used by women and are "worn" for longer durations than other plugs, with the purpose of adding a covert, naughty thrill to their day.
My girlfriend sat down on the wooden chair carefully, and slowly. When I asked if she was feeling alright, she said she was great, but didn't want to make a loud sound or hurt her butt. Intrigued, I asked why would she be worried about a loud noise? She blushed, and said she'd been using her new princess plug that she'd ordered, and had been wearing it all afternoon!