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

Read also:

• What is your secret to glowing skin?
• IndiGo, Delta, Air France-KLM, Virgin Atlantic Announce Partnership - Airways Magazine
• I gave him everything. He said he loved me. Why?
• Is marijuana bad for you?
• Being fat is a trap - Hacker News
• Can I know a love story of a medical student?
• How can I stop drinking?
• Brain’s Reward Center Tracks Not Just What, But When Rewards Arrive - Neuroscience News
• Why were the Japanese soldiers in WW II so hesitant to surrender in battle?
• What are some funny and smart quotes?
• Can the existence of past lives be proven without the use of hypnosis or a pendulum to inquire about previous incarnations?