Dangerous sex: Scientists find the most dangerous sexual position

These moves could put you—and your manhood—in harm’s way.

The Eager Chef

The Position: You’re standing on your toes while she’s sitting on a counter in front of you. The sex is … spontaneous.

Why it’s Risky: Most cases of penile fracture—ruptures of the blood-filled tubes in your erection—occur from very vigorous sex, explains Justin Lehmiller, Ph.D., who teaches human sexuality and psychology at Harvard University. If your partner is sitting on a countertop and—in your enthusiasm—you miss your target either high or low, your unlucky penis has nowhere to go but into her pubic bone or the counter.

Also risky … Any standing position that has you on the tips of your toes. A momentary lapse of calf strength could send your manhood crashing into an unforgiving barrier.

The Over-Exuberant Swiss Ball Blitz

Why it’s Risky: The Swiss Ball Blitz may add some bounce to your thrusts, but beware: “Penis breaks will be more common in any sex position in which the penis comes fully out of the vagina and then goes back in,” Herbenick stresses. Because the Swiss ball creates an unusual amount of up and down inertia, too much oomph could lead to your schlong slipping out of your girl just before gravity and momentum bring her full weight crashing back down on you.

Also risky . . . Stairway to Heaven, or any pose where she’s in the driver’s seat and the sex is especially vigorous. If she’s on top, you have less control over the in-and-out motion, and so you’re more likely to slip out of her, Herbenick explains.

The Cowgirl + Lean Back

The Position: You’re on your back, she’s sitting on top of you. Rather than leaning forward with her hands on your chest, she’s leaning waaaay back.

Why it’s Risky: Like an elbow or knee, your erect penis can be “hyperextended” if you put too much or too frequent downward pressure on the shaft, finds a study from the University of California, San Francisco (UCSF). Over time, this hyperextension can lead to peyronie’s disease—a buildup of plaques that causes your rod to bend while erect. That can make sex impossible, the UCSF research suggests. If you feel tugging—or even a small joint-like crack near the base of your penis, the angle of your intercourse is a little too extreme. Have her lean forward.

Also risky . . . The Reverse Cowgirl + Lean Forward, The Butter Churner, The Spider—or any pose that creates the sensation of tugging down on the base of your penis.

The Pogo Stick

The Position: Think of it as standing missionary. You’re holding up all her weight, bending backward, and—to facilitate the old in-and-out—you’re flexing your knees and bouncing her up and down on your johnson.

Why it’s Risky: Anything acrobatic like this is a lot more likely to lead to back pain or strains for the guy, says Herbenick. Not to mention you could topple if your footing is unsure. The other obvious ouch: The woman’s also at risk of being dropped, Herbenick adds.

Credit http://www.menshealth.com/

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