Do you know enough about chlamydia? You probably know you don’t want it, but there’s more you need to know.

Stop ChlamydiaFirst of all, chlamydia trachomatis (that’s its full name), a bacterial infection, is the most common sexually transmitted infection (STI). Four times as common as gonorrhea. Six times as common as herpes. More than 30 times as common as syphilis. Three million Americans get it every year. And guess who’s most at risk? Women and men under the age of 25.

If you’re sexually active, especially with multiple partners, you’re at risk. Chlamydia is spread by vaginal and anal intercourse. “It’s so easily transmissible,” says Susan Kaufman, assistant professor of obstetrics and gynecology at the Robert Wood Johnson Medical School in New Jersey.

The news gets worse. When you have a cold or the flu, you know. You have symptoms. With chlamydia, there’s a very good chance you won’t know you have it unless you get screened. According to Planned Parenthood, up to 85% of women and 40% of men infected with chlamydia show no symptoms.

Therefore, sexually active individuals should get screened.

Diagnosis is fairly simple: It can be done by a urine test, a test of cells from the penis, cervix, urethra, or anus, or examination of the cervix. If you are diagnosed with chlamydia, you should tell your sexual partners and you can both begin treatment with antibiotics immediately — even if you’ve never noticed any symptoms.

GonorrheaGot gonorrhea? You don’t want it. But if you do have it, you need to deal with it. NOW.

Unfortunately, you might have it and not know it: According to Planned Parenthood, 80% of the women (who have the greatest risk of contracting the infection) and 10% of the men with gonorrhea show no symptoms. So if there’s any chance you could have gonorrhea — which is spread through vaginal, anal, and oral intercourse — you should get tested as soon as possible.

If you do have symptoms — and many people with gonorrhea do not — here’s what you might see, according to Planned Parenthood.

Women may experience frequent or burning urination; menstrual irregularities; pelvic or abdominal pain; pain during intercourse or gynecological examination; yellowish or greenish discharge from the vagina; swelling or tenderness of the vulva; or arthritic pain. Symptoms would appear within ten days of infection.

Men may experience pus-like discharge from the urethra or pain during urination. These symptoms can show up one to 14 days after infection.

Left untreated, gonorrhea, a bacterial infection, can lead to

Male Oral SexScientists call it fellatio. Guys who could give a damn about science call it a blowjob, a hummer, a pearl dive, etc. But no matter what you call it, having your partner go down on you is one of life’s greatest pleasures.

Sometimes, though, there are a few snags.

Unfortunately, Fellatio 101 isn’t standard classroom fare. It’s not even something the mother bird teaches its young. As a public service for anyone who has a few questions about the right techniques, here is a laundry list of tips on what guys look for — and require — in a good blowjob.

1.Don’t try so hard. Last year, my friend “Bridget” asked me why she couldn’t fellate her boyfriend to orgasm. My response? In a perfect world of Playboy and porno flicks, hummers lead to big, healthy orgasms. You know the scene: some tramp uses a pogo-like motion to deep throat her partner, only to be greeted by the requisite money-shot a mere seconds later.

Whatever.

I told Bridget to ignore the pot o’ pearls at the end of the rain-blow. Instead, I asked her to think of the hummer as the perfect pre-game warm-up. Think about it…What better way to prepare for the plunge than with a good wand-wash? Do runners break records without stretching? Do writers hand in first drafts? No. Like a good appetizer, I’ve found that a little sucky-sucky before the supper always makes for a pleasant dining experience.

2. Give yourself a hand. Guys spend years refining their “handy” skills before grabbing their first gobbler. And while the hand is neither moist nor equipped with a tongue, self-help is sometimes very satisfying. Therefore, I suggest women use their hands AND their mouths while orally pleasuring their partner. Ladies, the mouth alone cannot provide the surface penetration needed to excite the penis. Cover the tip with your mouth, making sure to cover your teeth with your lips. Swirl the tongue around the head and shaft. Then grasp your boy’s toy so that your forefinger is touching your lips. Using your mouth and your hands in unison, begin the up and down motion. Glance up and admire his smile.

3. Ignore the “spit versus swallow” argument. Some men SWEAR that sperm swallowing is really a test used to measure the amount of trust a woman has for them. I’ll probably lose my union membership for this, but it really doesn’t matter. If you can cause the eruption, you’re a goddess. Draw the pearly white lava and we will worship your volcanoes to no end.

Sex outdoorsOn a warm Friday night last May, Jessica (not her real name), a Penn State University sophomore, tried something new, and it took just one taste to get hooked.

It was the week before finals. Jessica and her boyfriend Dave (not his real name) had spent the entire day cramming for a biology exam. It was 10:00 pm, and most of their friends had left for end-of-semester parties. Suffering after hours of reading and concentration, the young couple needed a tension breaker. Dave suggested they ditch biology and instead study anatomy — outside.

Jessica and Dave enjoy an adventurous sex life. Things got hotter, however, when they left the dorm room and ventured out into the wilderness. “Sex hasn’t been the same since,” she admits proudly. “[Outdoor sex] has an element of danger to it, and an element of being caught. Even though we go to a totally isolated part of the woods off campus, there’s still that tiny tinge of excitement that someone’s watching us. The air is crisp. Everything’s fresh. It’s so natural.”

Jessica says sex with her boyfriend is “amazing,” but doing it outdoors makes things even better. The college campus provides the perfect backdrop for shagging under the stars. After all, there’s only one thing as beautiful as sex — and that’s nature.

College campuses are breeding grounds for exploration and adventure. Here are some tips, suggestions and other things to keep in mind when taking everyone’s favorite indoor sport out into the great outdoors:

Finger FinesseHave you ever seen a porno? Don’t lie. I’m convinced a lot of guys — too many — got their sexual how-to from skin flicks they watched as teenagers when their parents weren’t home. And that can lead to big problems when they attempt to imitate the digital maneuvering they saw onscreen during real-life sexual situations.

I’m not saying you’re that guy, but if you are — don’t be that guy.

Porn actresses aren’t given enough credit for their thespian skills. They should win an Academy Award for the moans and scream they emit when the man rubs his finger as fast as he can against their genitals, as if he were some perverted boy scout trying to start a fire by rubbing two sticks together. But let me tell you, in real life, friction burns just aren’t orgasmic. In fact, they hurt!

So how do you give good digital stimulation, the kind that makes a real girl moan like a porn star?

I decided to ask the one man who they say you can ask anything: Jeeves, the Internet butler. After all, I had once asked him the meaning of life and he had an answer for that.

Once on the site, I typed in my question. How can you massage a woman’s clitoris the right way? After clicking enter I found a plethora of step-by-step articles on giving a man a hand job and places you could find pictures of the area in question but that dirty old man Jeeves had absolutely nothing on women. (Which leads me to believe the whole meaning of life thing he came up with was probably a crock too.)