Candles are not just used for creating a sensual and erotic ambiance but can, in some situations, be used during sex or foreplay. Dripping hot wax onto your partner during foreplay can be extremely stimulating. Firstly, the hot wax creates a slight sting and warmth that is very pleasing. Secondly, as the wax begins to harden the skin is pulled slightly and yet another interesting and erotic sensation begins, especially on sensitive areas like nipples. Lastly, colored wax can make a beautiful and erotic design on the skin which adds yet another layer to sexual play.
WARNING: wax play can be dangerous and cause harm to the skin if the wax is too hot and not used with proper care.
TYPES OF WAX AND MELTING POINT:
Paraffin – 125-145° F
Beeswax – 145° F
Soy Candles – 130° F
Jarred Candles – 120° F
Bondage Candles – 125 F-135° F
Added oils, dyes or scents will increase the melting point. It stands to reason that the higher the melting point, the hotter the wax. The hotter the wax the more chance of there being an injury to the skin.
MasterKink's Fetish Drip Candles are made from paraffin and burn at a high temperature.
BEGINNERS BEWARE: Using wax during sex play requires a bit of experimentation
and knowledge. Beginners should never use a standard beeswax candle first time out because these burn the hottest and require the most care. Beginners should, instead, opt for a special bondage or sensual wax candle with a lower melting point. This way experimentation can begin without the risk of serious burns to the skin. You can usually pick bondage candles in any number of colors and styles. Once you decide to play with wax it is important to observe a few basic rules.
Firstly, make sure your partner is willing to participate in wax play. Dripping hot wax on a blindfolded partner without their consent can be quite jarring. Always discuss this activity first. Secondly, while the inclination may be to immediately drip the wax onto the erogenous zones (breasts, vagina, penis, balls) it is much more advisable to drip the wax onto the back, arms or legs first to see how the heat is tolerated. Thirdly, you NEVER want to drip the wax up close to the body as the wax has no time to cool in the air on the way down. Standard practice is about 18-20 inches or more ABOVE the body. You drip the wax SLOWLY – never just DUMP wax into your partner.
Beginners are often better using large tapered candles which produce drips as opposed 
to a jar candle which could potentially release a large stream of melted wax. Pay attention to your partner’s actions and reactions. If they are in pain – STOP! If their skin is getting very red – STOP. If you notice any blistering whatsoever – STOP!
MORE ADVANCED PLAY: If you and your partner are enjoying wax play and want to take it up a notch you can advance to a candle with a higher melting point, try candle wax erotic art or concentrate more on stimulating the erogenous zones. Again, you need to always begin slowly, holding the candle further away from your partner’s skin, being careful not to drip too much at once.
Always have access to water to douse the wax and make it cool more quickly if necessary. The higher the melting point, the more scalding the wax will be to the skin. Even if your partner finds it enjoyable and pleasurable, the chance is there will still be marks on the skin for a day or two post play. It is the responsibility of the person dripping the wax to observe the skin for damage.
Remember: wax will stick in hair and will require re-melting to remove it. So, beware with pubic hair or thick back or leg hair. Wax play may be fun but getting a bunch of dried wax out of matted up hair is not always fun!