Why do some men want to have anal sex with women?

Read also:

• Why is going on a date today so much different than it was when I was young?
• Is it wrong of me to feel uncomfortable that my friend thinks my brother is hot?
• Who is the greatest light welterweight boxer of all time?
• How can a man clean his Soul?
• Why We Still Can't Find A Solar System Twin - IFLScience
• What are some prime examples of gibberish from the bible?
• Russell's F1 Canadian GP win in doubt after Red Bull protest - Autosport
• Do all armies have the same rank structure?
• Why do people keep complaining about how some people copy and paste the question before answering it? To me, it's very disturbing and makes me want to block and mute them as annoying whiners.
• Do many women shave their vaginas?