recommend two hours.  I don't know about Philly, but in SoCal, its mostly offered by Thai agency girls and they are very good at it.  Many AMP's offer it without full service, just HJ/BJ finish.

... and really enjoyed it.  It's like B2B FBSM on steroids. I think it's more fun when each person takes turns doing the sliding on the other, but that's me.  I think 90 mins is a good minimum for nuru, including cleanup and having time for mutual massage and all the fun activities that can flow from the massage.

Be sure your nuru partner knows how to do it right.  You need the bona-fide nuru gel (water based) and a waterproof surface, eg waterproof cover sheet on a big sturdy bed.

First, I love it, but nuru is water based, and unlike oils, water will evaporate very quickly and that means you'll be feeling a shiver unless the room is very warm or you do it on a  very hot sultry day.

The first time I had it, I shivered even though the nuru had been heated.

The next time we did it on a very hot day with the windows all open.  The gentle breeze felt very cooling and refreshing then.  That was one of the best sessions I ever had.

It is very easy to buy nuru on Amazon, and it's not that expensive either

Are you in Pilly? An awesome provider of this is going to be not TOO terribly far from you over the next month or so.

Its more like a bodyslide or variation of a FBSM. This is not typically a GFE type of experience because of the hygiene/sanitation issues that are specific to female health. With that said, the following is based on TYPICAL sessions. As with everything, YMMV so take the following with room for a different approach by someone else.

I. Be clean. REALLY clean. Everywhere. You are covered in lubricant and so is she. That means that every inch of you is ending up in that lubricant and you are both sliding around in it. If you practice great hygiene, this is not a problem. If you don't... well, you get to share in the distinct displeasure of your questionable hygiene practices.

II. NO, you do not get to do a stripper slide or any other type of aiming your genitals toward hers during the session unless she already does BB and ALSO apparently doesn't care about bacteria, dead skin cells that have sloughed off or stray body hair ending up in or near her sensitive parts.

III. This is a fleshy girl massage. If you prefer skinny chicks, you may find yourself discovering the sensual limitatios of bony hips, elbows and knees when you are both slippery as seals and covered in lube. Thick chicks feel amazing during this massage because, when all is said and done... a little meat on the bone always feels good.

IV. Implants are going to feel like basketballs covered in skin and lube. If you are a breast lover, everything you hate about implants will be magnified during this.

V. If you have ANY kind of weird skin condition, cuts, rashes, etc - you will likely be refused the session. This is full contact, skin to skin sliding and grinding. Staph, MRSA, psoriasis, shingles, etc.... we aren't dermatologists with labs to check a skin sample so the answer should be NO, it isn't happening.

There are other things but these are the basics that should be expected with most NURU providers. Most of all, this is a playful, uber-sensual experience that is best done with a provider who is natural (small or large, natural breasts will feel exquisite. Implants will feel like plastic tupperware bowls) and has some meat on her bones to soften the hard angles of elbows and hips as she slips around.

Hope this helps.