fireplay

Experimental play with fire, as by lighting matches.

At least one study suggests that if you take a population of boys between kindergarten and fourth grade, 60 percent of them have committed unsupervised fireplay, which is to say that fireplay is a common and absolutely normal part of human development.

Any of various sexual practices involving fire, such as setting fire to alcohol against the skin.

Many years I attended a BDSM conference where a well-known and respected BDSM master presented a demonstration of fireplay as part of the planned programme.