Wet cupping (also known as blood cupping) is a form of sensation play derived from an the ancient Chinese medicine practice of cupping where cups or bowls are placed on the skin to create suction, drawing blood towards the skin and providing strong, localized pressure sensations. Wet cupping is very similar to traditional cupping, but with one key difference. In wet cupping, the skin is sanitized and small incisions are made, often using a device called a plum blossom. This results in blood collecting in the cups and dribbling out after they are removed.
Wet cupping is an effective way to create intense erotic sensations and leave the skin far more sensitive to stimulation after the cups are removed. While it should not be particularly painful, wet cupping does create dramatic BDSM scenes.