Domination & submission _ the BDSM relationship handbook ( PDFDrive )

ball-stretchers.
The safety concerns previously mentioned for clamps, clips and vices apply
equally, if not more so, to any play involving the suspension of heavy weights to
the nipples, labia, scrotum or any other vulnerable body part.
Heat & Cold
Sensation play involving heat or cold rarely requires any specialized toys or
equipment. The most common forms of play in this category consist of ice-cube
play, ice dildo play, ice water torture, hot water torture, hot surface torture and,
to a lesser extent, fire play. Its appeal has little or nothing to do with heat.
Heat and cold in small amounts and for short periods of time are relatively
harmless. It is only when your activities cross the boundaries of common sense
that they can become problematic and potentially lethal. Running an ice cube
over someone’s nipples or clit? Good. Leaving a nine-inch ice dildo in
someone’s ass? Bad. A little ice water on sensitive body parts? Good. A
chunk of dry ice on sensitive body parts? Bad. Water hot enough to give the
skin a nice rosy hue? Good. Water that is hot enough to scald and cause
blistering? Bad. A little common sense goes a long way when it comes to this
kind of play.
You should always be cognizant of the signs of hypothermia (low core body
temperature, shivering, mental confusion), as well as hyperthermia (high core
body temperature, hot dry skin, nausea, vomiting, headache, dizziness). Both
conditions are potentially life-threatening, and can develop relatively quickly
and easily under artificially cold or hot conditions. Additionally, some of the
normal functions of our bodies can be severely disrupted by being exposed to
abnormal temperature ranges for more than a very short span of time. For
example, an ice cube in the rectum may be relatively harmless, but an ice dildo
left too long in there can cause a week of severe pain, cramping, diarrhea, and
rectal bleeding.
Abrasion
Abrasion play is relatively uncommon in the BDSM lifestyle, though it has
enjoyed a small surge in popularity as people seek out new and unique tactile
experiences. Abrasion play consists of using rough-textured objects or surfaces
to rub or abrade the skin in such a way that it produces desired sensations in the