ビューティフル・ビハインド - ピンク 11.5 cm バットプラグ - F06C087A00-027

The 11.5 cm size is perfect for warming up, and the smooth silicone slides in with barely any resistance—no tugging at all. I've used it a few times now and it stays put comfortably, which is exactly what I wanted from a plug this shape.

The silicone really is as soft as the description promises, which made the 11.5 cm size feel much less intimidating than I expected. It slid in smoothly with some lube and stayed comfortable even after a while, so it's definitely earned a spot in my rotation.