As amazing as butt play and anal penetration/backdoor stimulation in general can feel, but it's not necessarily something you should jump into all willy-nilly. Lube is important, patience and relaxation is important. Finding the right tool for the backdoor job is very important. CalExotics Silicone Curved Anal Stud Probe can help you there! 

Extra curvy and carefully contoured to seek, find and deeply please inner anal sweet spots (prostates included), this pure silicone probe is textured and swollen up top, and sleekly smooth down below. Lots of length makes for lots of deep sensation and the ability to go at your/their own pace. 

A nice big circular base rounds off the Curved. You'll be able to play free with no worries about too-deep slips, plus, the base features some sturdy suction and can be attached to smooth, nonporous surfaces for hands-free adventures.

The Silicone Curved Anal Stud Probe comes to you and yours in ultra hygienic silicone. Completely hypoallergenic, non-reactive and safe for sensitive skin, it's extra easy to clean. Hand wash your probe well with lots of warm soapy water before and after playtime, or use a compatible toy care fluid/foam. The Curved can be used safely with any great quality water-based lube, but please avoid contact with silicone based lubes and other silicone toys/products.