There are a few constants in Las Vegas every January.

The tech world will descend upon the town right after New Year's for the International Consumer Electronics Show, or CES. And not too long afterward, the adult entertainment industry will follow.

While CES (and this week's SHOT Show) are closed to the general public, the Adult Entertainment Expo welcomes its fans—and this year, they're more welcome than ever—as the show has extended its public hours and expects to hit record high attendance levels.

The show floor is a cavalcade of barely-there lingerie, flirtation, sexual capitalism and whips (as 50 Shades mania continues).

In addition to porn stars meeting their fans—and jumping off their chairs to hug and pose for pictures with many of them—there's a lot of business being conducted at the show. Toy companies are showing off their new lines to retailers and business negotiations between companies take place in private suites.

While the industry's most ardent fans make a pilgrimage here each year, not everyone is able to make the trip. For those people, here's a taste of a day at the porn show.

—By Chris Morris, Special to CNBC
Posted 26 Jan. 2015

(Pictured, Jessa Rhodes at the Adult Entertainment Expo in Las Vegas.)

In an industry where things change so rapidly, there's something refreshing about old porn stereotypes. Porn studio Brazzers has set up a makeshift "classroom" on the show floor, with some models (like Keisha Grey, pictured here) dressed up in Catholic schoolgirl outfits—and others, dressed as strict, cleavage-baring teachers.

The ongoing interest in the bondage subculture means this show area, dedicated to some of the more intense parts of the fetish, continues to grow. There are plenty of whips and rope (and some other devices that we really can't go into), but there are also some elaborate custom items, like this outfit from The Black Room. Already sold (for $3,500), it took just under a month to create and was made entirely of chrome and steel.

Joanna Angel is more than a star in the industry, she's also the head of Burning Angel, the company that helped bring the punk look into porn (paving the way for performers like Bonnie Rotten).

Burning Angel hasn't been entirely spared the piracy that is hurting some of its competitors, but it boasts a loyal following.

Penthouse is moving into a new form of adult entertainment—booze.

The company has licensed its name on a line of sparkling wines (sold for $30 a bottle) and whites and reds (for $17-$22 each). It has also launched a line of flavored vodkas that it says will boost the libido of those who consume it, as well as a plain vodka, Canadian whisky and a Whiskey/Tequila blend, which actually works quite well. (All of the licensed spirits cost $30 a bottle.)

With virtual reality on the horizon, it was just a matter of time before porn jumped on board. Red Light District is a VR strip club and…well, orgy. The graphics are good, but not up to par with today's top video games. But that hasn't stopped people from lining up to try the experience out.

AEE is a chance for fans to meet their favorite stars, like Skin Diamond, pictured. The lines grow longer each day. By Saturday, people will wait for 30 minutes or more just for a few minutes—tops—with the most popular actresses, but that never seems to deter them.

The adult industry isn't limited to your home. Several adult vacation spots are promoting themselves at the show—including Jamaica's famed Hedonism 2 (which recently underwent a substantial refurbishment). Lines at these sorts of booths generally aren't long, but seemingly everyone at the show has at least slowed down to take a look when they walk by.

The Adult Novelty Expo runs concurrent with AEE, showing off some of the year's upcoming sex toys. Among the items on display this year is Teddy Love, a bear that's definitely not for kids. Designed as a pleasure product for women, this cuddly little guy's nose vibrates at 10 different speeds.

One of the fastest growing areas in adult entertainment is CamGirls, performers who strip (and more) online for tips. Fans rarely get a chance to meet them, since so many work from home (and don't feature dance at strip clubs around the country as many porn stars do)—but at AEE, fans may be able to finally see them in person.

In a convention area full of sex experts, it makes sense to tap into that knowledge. This year's AEE features a number of seminars led by Jessica Drake, whose "Guide to Wicked Sex" series has been a hot seller for years.