The big question is. What lubricant to use for sex? There are some rules to avoid problems with your subject or the toys you use! Here are the lubricants used;
- light mineral oil
- heavy mineral oil
- glycerin
- propylene glycol
- silicone lube
- mineral oil based greases (Vaseline, petroleum jelly)
- water based food texturizers (guar gum, xanthan gum, locust bean gum, methyl cellulose)
- Bentonite clay (uncommon, specific fetish use)
- J-LUBE (water based)
As lubricants go, one must be careful to use the right lubricants with their toys. If you are using Silicone (TPE), vinyl, or plastic toys. The best lubricants are mineral oils, mineral oil greases, glycerin, food texturizers, or bentonite clay. Do not use a silicone based lube with silicone or TPE toys, it will deteriorate and melt the silicone rubber.
If you are using any form of rubber (latex or vulcanized) then you must use only certain lubricants such as; silicone lube, glycerin, bentonite, or water based! mineral oil and such will rapidly deteriorate the rubber and ruin the toy.
Heavy mineral oil is the oil usually found in medium sized bottles at the local pharmacy, it works well, but if you want one thats thinner, our local farm and ranch supply/ feed store sells "LIGHT MINERAL OIL" in gallon bottles. If your looking for a wide variety of MINERAL OIL viscosities, try a good restaurant equipment supply. They carry gallon bottles of food grade mineral oil for lubricating equipment, it's sold in SAYBOLT VISCOSITY, the higher the number the thicker the oil. be sure your using pharmaceutical/veterinary grade or food grade oil! Light mineral oil is around S-70, while heavy mineral oil is S-200, and super thick is in the S-350 to S-500 range. See this link for 1 gallon bottles, rather reasonably priced:
STE OIL COMPANY
If your looking for the very shiny wet look on a subject for effect or photographic purposes, then coating them with a think layer of light mineral oil works great, if you need them to be even more shiny, then use a 70/30 mix of vegetable glycerin and distilled water, spray it over the mineral oil, and they'll look super wet and shiny! If the water/glycerin layer seems to dry out to quickly (air-conditioning and heating will cause this during play time or a photo shoot) then you can change the mixture to 60/30/10 mix of glycerin, distilled water, and propylene glycol (the propylene glycol will attract moisture to the mixture and prevent evaporation).
Bentonite clay and water (sometimes glycerin and/or propylene glycol is added as well) is used in a thin- medium slurry for mud fetish scenes! Many people use it as a lubricant in these scenes during penetration as well, as it is very slippery, but adds enough thickness to increase sensation. Safety is unknown, but I cannot find reports of any side effects or hazards of it entering through anal or vaginal cavities. Women should probably irrigate their vaginal canals out afterwards to be on the safe side. powder BENTONITE clay can be purchased from "WELL DRILLING SUPPLY HOUSES, or at AMAZON or E-BAY" you should look for QUICK GEL for water well drilling. You'll need a good paint stirrer that you can mount on a cordless drill, a appropriately sized bucket for mixing, and take your time adding water while mixing to get the results you want in thickness, after you have achieved a thickness you want, add a few ounces of propylene glycol to alter it's viscosity and slow down the drying process while you play!
ATLANTIC SUPPLY
J-LUBE is sold as a white powder in a bottle, 1 heaping tablespoon to 32 OZ distilled water makes a very clear, slippery, slimy lubricant, it's actually hard to wash off, but table salt sprinkled on your hands quickly breaks the chemical bonds and allows it to be washed off. Use a blender to mix it up, and you can add glycerin and or propylene glycol to it to make it even more slippery! This is a favorite replacement for petroleum jelly for anal sex.
J-LUBE at JORVET supply
Vet supplies are a great place to buy other items for medical fetish as well!
For food gums, you'll need to research how to mix them with water. Some only dissolve in hot water then gel when they cool, others much like starches must be dissolved in cold water then heated to a simmer to dissolve then gel as the cool. XANTHAN GUM works very well with glycerin and propylene glycol as a water based lubricant.