I am a teenage boy and I am wondering if i stick it in does it hurt the other person because I care about there feelings a lot. All I want is for them to feel nice and pleasured. They have agreed to do it so I need an answer hopefully soon. Thanks a lot!

How can I make my penis bigger naturally?

I read that bacterial vaginosis can increase a woman’s susceptibility to other STIs. I don’t understand this–what does that mean?

I am a 23-year old woman, one steady partner now but a couple of other sexual partners in the last year or so. I had a urine test for chlamydia that was negative, but I’ve had anal sex, too. Would the test I had also pick up on chlamydia in the anus or rectum?

I’m a 15 year old guy and my doctor said she thinks I should get the HPV vaccine. Is the vaccine safe? And why do guys need a vaccine to protect them against a disease that affects females?

What is foreplay? “Foreplay” is generally defined as any sexual or romantic activity that prepares someone for intercourse.

Somebody I was with told me he has chlamydia and that his clinic said I should be tested. I don’t have any symptoms. Do I really need to get tested?