Feet

What is it?
“It’s the largest fetish in the known universe,” says TES’s Boymeat. Given that so many nerves end in your feet, that’s no surprise.

How do I get started?
Foot parties abound in New York. Try one that includes trampling, hosted by paddlesnyc.com on Oct 13, or an all-male footfriends.com party on Mon 8. If you’re looking for dominant women, register at foot-worship-party.com. Too shy to get barefoot? Videos of naked tootsies are on offer at underft.com.

What are the risks?
“I’ve never heard of anyone getting sick from sucking on toes,” says Foot Friends owner Alan Pratt. “Nor have there been any cracked ribs from trampling, though it could happen.”

Insider tip
Per Boymeat: “Meeting someone at a foot-worshipping palace is the same as meeting them at a bar. If you walk up to a girl and say, ‘Nice tits,’ you’ll get slapped. Show basic etiquette—say hello, say your name.”

Female ejaculation

What is it?
The release of fluid—not urine—from the urethral sponge. “Every women has the plumbing to do it,” says sex educator Felice Shays.

How do I get started?
“Go for a pee, then get turned on before you even start looking for your G-spot,” says Shays. Insert two fingers into the vagina and feel around for the bumpy, spongy area above the urethra, then make a firm beckoning motion toward the belly button. Bear down when you feel like you’re going to pee. Babeland has workshops (the next is Oct 14), and Shays offers personal instruction (write to feliceteaches@aol.com).

What are the risks?
Wet spots! Put down a towel to save your mattress. And get a manicure—a hangnail will make a G-spot cower in fear.

Insider tip
“Use plenty of lube and drink lots of water. The more hydrated you are, the better your chances for ejaculating,” says Shays. “And don’t get hung up on it. It’s not the Holy Grail; it doesn’t matter if it doesn’t happen.”

Hentai

What is it?
Hentai includes all illustrated forms of pornography, including anime and manga, and often tackles rape, incest and other taboos.

How do I get started?
Try Kim’s Underground Video in the East Village for hentai DVDs; Japanese bookstore Kinokuniya in Midtown for yaoi (male-male) and soft-core manga; and NYC Media Blaster’s rareflix.com for online purchasing. The MangaNEXT convention will take place Fri 5 through Sun 7 in Secaucus, NJ. Visit manganext.org for details.

What are the risks?
Mental scarring. Series like Urotsukidoji, which features tentacle sex with octopus-like creatures, can shock even hard-core porn hounds.

Insider tip
“Pop into any video store in Chinatown and you’ll find a plethora of hentai,” says Peter Tatara, programming manager for the New York Anime Festival. “Most of it is bootlegged, but there’s a cartoon kink for any perversion.”

Masturbation parties

What is it?
Get yourself—or others—off at “no lips below the hips” get-togethers.

How do I get started?
New York Jacks (nyjacks.com) holds weekly all-male circle jerks, while women and men alike are invited to ’bate while they watch two people fuck at the weekly Bukkake Social Club (bukkakesocialclub.blogspot.com). Or, hone your solo skills: A five-hour private session with famed masturbation master Betty Dodson (bettydodson.com) is $1,200.

What are the risks?
Wash your hands before and after and you’ll be just fine.

Insider tip
“If you want to turn someone [offering to get you off] down, say, ‘No thanks, but thank you for asking,’ ” advises Lynda Gayle, who’s been holding internationally attended masturbation parties in Florida for 19 years (via clubrelate.com). “Acknowledging the compliment makes saying no easier.”

Medical play

What is it?
BDSM role-play that involves dressing like a doctor, nurse or patient, and administering exams, enemas, catheters and at worst, amputation.

How do I get started?
Don a sexy nurse’s uniform and take your partner’s temperature. Buy medical gear from kinkymedical.com, medicaltoys.com or industry supplier cottonballs.com. Avoid needles, knives, suturing, anesthesia, urethral probes and speculums unless you’ve been through med school. (Really.) Session one-on-one with a master to learn the basics.

What are the risks?
Blood play carries unfathomable risks, including death. Sounds (metal probes) can make their way to the bladder, requiring a trip to the real ER.

Insider tip
“When injecting, use saline,” cautions Master R, an instructor at La Domaine Esemar, the world’s oldest S&M training château (located near Albany). “Sterile water burns like hell. And never use anything corrosive.”