Sabine Walter

Porn sites are all over the Internet and, unfortunately, kids are certainly smarter than adults are about computers. The good news is that all the major commercial online services provide tools for parental control. With varying degrees, they let you surf for what you want without worrying too much about whether your kids can also find the material.

Heterosexual intercourse occurs whenever a man puts his penis into a woman’s vagina. That’s the minimal definition. But sex is about more than that simple act. As such, you may be curious, or you may want to know how to describe sex to a teenager. The information below explains what — exactly — happens during intercourse.

Masturbation is, in fact, a basic part of good sexual functioning. The myths about going blind are most definitely untrue, and masturbation is a healthy part of growing up. If, however, you are just exploring sexuality, you may be wondering exactly how to masturbate (or how the “other half” masturbates). Keep in mind that, while you can read about the most common ways, there are many ways to enjoy sexual pleasure on your own and no “wrong way” to masturbate.

What is sex, exactly? In other words, what "counts" as having sex? And when do you stop being a virgin? Sexual relations cover activities beyond intercourse: They also include outercourse, oral sex, and anal sex. So what are the differences and how do they impact virginity? One thing that all forms of sex (outercourse, oral sex, anal sex, and intercourse) have in common is that they involve two people giving each other the pleasure that comes from having an orgasm.

What's the right age to start having sex? When to start having intercourse (or any other type of sex) is a very difficult and serious decision to make. Some people believe you must wait until you're married before having sex. Other people may not have a problem with premarital sex. You're the only one who can decide for yourself — although there are important factors to consider in that decision.

Knowing how a penis functions can provide useful insight into sex and the human body — whether you want to understand the penis and male anatomy better or learning about it for the first time. Basically, a penis is composed of three structures, which are made of a spongelike material that can fill with blood: The two corpus cavernosa contain the central arteries and lie on the top half of the penis.

Understanding women's sexual (or reproductive) organs such as the vagina, uterus, and vulva is as integral to sex as understanding the penis. Demystifying female anatomy is key to good sexual functioning, whether you're a mature, experienced adult or looking to learn about women's sexual organs for the first time.

The sexual response cycle is, essentially, a clinical version of how a human body responds during sex. By examining thousands of examples, scientists are able to carefully describe the events that happen in the lead-up, actual experience, and follow-up of the sexual act. If you truly want to know what exactly is going on when two people have sex, the physical side is all explained through the sexual response cycle: Sexual Desire Phase: The Sexual Desire Phase, sometimes called the libido, precedes actual physical or psychological stimulation.

Testicular cancer can be deadly. Luckily, the disease is also easily curable — if a man finds it in time. Testicular cancer usually begins as a painless lump, which can be found without a doctor’s help. For his own good health, every man — not just older men — should know how to do a self-check of the testicles.