This process is known as the sexual response cycle. Experts usually categorize the sexual response cycle in four phases spanning from the second you get turned on mentally or physically to the blissful, tapped-out close of events. Different bodies of thought proceed through the sexual response cycle in slightly different ways, with some separating certain parts of the sexual response cycle that others lump together. The Cleveland Clinic lists desire, or the feeling that you want to have sex , as the official start of the sexual response cycle, and for seriously good reason: It can be a huge part of getting mentally and physically ready for sex for some people. So, for some people with vaginas especially when in a shiny new relationship or when getting together with a new, exciting partner , desire might set off a sexual domino effect. But for others, desire may not kick in until after the sexual stuff has commenced consensually, of course.

There are a lot of myths around sexual activity, one being that your first time having sex will hurt. Others may include oral stimulation, fingering or handjobs, or anal penetration in their definition. Your definition could also include stimulation or penetration with a sex toy. Regardless of the type of sexual activities you want to try, there are a few general tips or rules you can use to make your first sexual experience more comfortable. Masturbating can help you figure out what feels good during sex, and it can help you feel more familiar with your body. You might find that certain angles or positions are uncomfortable for you while others are pleasurable. You might feel the pressure to give your partner — or yourself — an orgasm.

When done correctly, regular sex can improve your relationship and sense of wellbeing. Not to mention it feels pretty darn good. But if you're a man who has sex with women, there's one thing you'll need to master before you can achieve the highest levels of sexual pleasure.

Back to Health A to Z. Vaginismus is when the vagina suddenly tightens up just as you try to insert something into it. It can be painful and distressing, but it can be treated. Vaginismus is the body's automatic reaction to the fear of some or all types of vaginal penetration. Occasionally, you can get vaginismus even if you have previously enjoyed painless penetrative sex.