Why do people have anal sex?

There are various reasons why some people choose to explore anal sex at some point in their sex lives 

• One of the main reason is the general desire to try something new and different. After experiencing more common types of sex for a while, some people might want to explore what else is available. 
• Other might be attracted by the idea of doing something that many people perceive as naughty, forbidden primitive or sinful. Anal sex is considered the ultimate taboo.
• Some men like anal sex because the anus generally feels much tighter than the vagina does and feel the anus provides stronger stimulation of the penis