Olfactory play involves using specific scents or smells as sexual elements. This might include natural scents (partner's scent, body odor), perfumes, pheromones, or other aromas.
The appeal often connects to attraction and primal response - many are attracted to partners' natural scents. Specific aromas can trigger memories or associations.
In BDSM contexts, scent can be used psychologically - being forced to smell something, scent marking (partner's scent on submissive), or smelling specific aromas during scenes.
Safety is generally low-risk though allergies to scents or aromas can be significant. Some people have sensory sensitivities to strong smells.