So you've watched your fair share of bondage porn, and you're starting to think that maybe you'd like to explore some bondage in the bedroom. But where to start? Though the pros may make it look easy, serious bondage isn't for beginners—and even with some practice, it's still advanced sex play. The last thing you want to do is get some rope and see how it goes. If you're going to go bound, you'll need some good guidelines and some easy to follow instructions.

Thankfully, Nina Hartley is here to offer her assistance, in the form of "Nina Hartley's Guide To Bondage Sex." With the help of bondage model and expert Claire Adams, Nina walks bondage beginners through all the basics of getting down and dirty while bound ... and throws in some super hot sex scenes by way of illustration.

After watching a few of her new Vivid-Ed releases, we're more convinced than ever that Tristan Taormino produces some of the best eduporn out there. The videos she's done for the line have been consistently smart and sexy, and do a great job of educating us and turning us on at the same time. But how much of that is due to Tristan's considerable charisma, and how much is the Vivid-Ed format itself? We had a chance to investigate that mystery this week with the latest Vivid-Ed release, "The Expert Guide to Positions": though it features Tristan as an onscreen educator, "Positions" was directed by Geoff Bean.

So how did it stack up? Our thoughts (and a preview clip) after the jump.

How To Solve Your Armpit Fetish Needs (Without Getting Arrested)

As we mentioned earlier, a poor armpit fetishist in Singapore was caned and sent to prison for 14 years because he wasn't very good at controlling himself where women and their sexy underarms were concerned. Granted, it's not always the easiest kink to indulge in (especially with strangers)—but there are other options out there that are better than molesting helpless passers-by on the street. After all, that's what the interweb is for! Some may find perusing a website like GirlPits or Armpits-Fetish.com to be a less-than-perfect substitute, especially if your Smell-O-Vision browser plugin is on the fritz. But you can probably find a more willing real life partner in the forums willing to lift their elbows for you if you're persistent enough. And if all else fails, you can always hire some professional assistance. Spending a little money sure beats a cane to the backside—although you can probably pay extra for that too.

Sex Tips From YouPorn: Don't Forget The Balls

Up Close And Very Personal With The DIY Dildo Cam

Everyone knows that the difference between "erotica" and "porn" is the frequency of extreme closeups of a penis moving in and out of a vagina. But when you're shooting your own personal amateur masterpiece at home (and without the help of Swedish authorities) how can you get that special balls-eye view to make your final product look as good as the professional kind? Here's one solution: build your own homemade dildo cam! With a little glue, a few wires and some good old fashioned ingenuity, you can take viewers on a ride on that train as it enters the tunnel. (Note: Actually installing a camera in one's scrotum is still best left to the pros.)

· DIY Dildo Cam (homemade-sex-toys.com)

Everyone has certain habits or interests they generally like to keep private, like banging hookers in expensive hotel rooms. But suppose you also have an important high-profile job, like—and we're just throwing this out there as a possible example—governor of a large Eastern state? If other people found out about what you were doing, it might cause problems for you at work. So does that mean you have to choose between your job and your extracurricular interests? Of course not! Leading secret double lives is an American tradition, and Time Out New York's latest unbelievably coincidental issue talks to people about their hidden worlds — including the lawyer/go-go dancer, the loving father/group sex enthusiast (who you may be familiar with) and the husband who can't seem to say no to a good happy ending. (Can anyone?) They even offer tips on how to keep your secret shame a secret. If only this had hit the newsstands just a few days earlier who knows who it might have helped?

· "How to: Lead a secret life" (timeout.com)
· Thumbnail via doctoradventure.info