字幕表 動画を再生する 英語字幕をプリント [The Truth About Sex Myths] Myth: Sex hinders athletic performance due to the release of testosterone. Fact: Sex causes the body to produce more testosterone. If anything, it should improve your performance. Penis size varies according to race. Nope. Penis size has absolutely nothing to do with race. Racist. Women can't get pregnant if they've never had a period. Women's bodies release eggs 12 to 16 days before their first period. Myth: Penis size is everything. Fact: Most of the sensitive vaginal nerves are located by the vaginal opening, which means any size can be pleasurable. And sexual satisfaction is more influenced by psychological connection, and of course, technique. You can judge a guy's penis size by looking at his hands or feet. There's only one way to accurately measure a penis: by measuring the penis. Myth: Aphrodisiacs enhance your libido. Fact: They don't do anything. It's just a placebo effect. Myth: A women's first time is painful because her hymen breaks. Over the years the hymen breaks down from different activities like walking, athletics or self-exploration. Pain is more psychological. Tension and anxiety make lubrication difficult. Myth: Using two condoms further reduces the risk of pregnancy. Fact: Wearing two condoms can create friction and cause them to break. One is as effective as it's going to get. Myth: You can't get pregnant if you have sex during your period. Fact: Sperm can live in your body for up to five days. Ovulating within those days can still get you pregnant. Oh! Oh God! Uh, what is that?