What makes girls masturbate?

Read also:

• Why is my vagina swollen, it’s very itchy. I had sex we used protection, but day after it felt like my insides had a heartbeat as well as itching, the pulsing has went away but it is still itchy and my discharge is yellow, i'm 15, what could it be?
• Is it possible for people who claim to be genuine and honest to actually not be? If so, why do they behave this way?
• What is the lowest probability event you have personally witnessed?
• What do you think of the Black history lessons in the PBS documentary about jazz pianist-singer Hazel Scott?
• In the New Testament, Christ quotes the Ethiopian book of Enoch. How do the Sola Scriptura folks square this circle?
• Mariners' vibes turn ugly after sweep: 'Nobody feels sorry for us' - The Seattle Times
• What are the possible reasons for people feeling depressed after the holiday season? Why does being alone exacerbate these feelings?
• What are the best examples of reverse psychology?
• 'Optical neural engine' can solve partial differential equations - Tech Xplore
• There's no way Republican Trump won all seven swing states. How was he able to cheat and steal the election?
• What are the reasons behind Europeans preferring to visit third world countries over taking holidays in their own continent?
• If everyone in Russia dropped into holes in the ground only never to return, would that be good for NATO and international peacekeepers? Can we convince Russians to be less diabolical, so they coexist? Does Putin stink like doo doo in the commode?
• Why do I (45, male) feel like I'm crushing on a girl (19, female)?