Anal sex play (which includes both internal anal penetration as well as external stimulation of the anus or any part of your bottom) is a safe and healthy way to expand your erotic exploration. Anal sex play focuses on both physical and psychological pleasure that other forms of sex play do not, and for many people (alone and with partners) it opens up new avenues that has an impact on all aspects of their sex lives.
A wonderful way to explore anal sex play is through the use of anal sex toys. In theory any sex toy you use to stimulate the anus, rectum or prostate is an anal sex toy.