olfactophilia
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olfactophilia | A sexual arousal, fascination, due to a smell and/or odours that come from the body.
Meaning
Comes from the Latin word 'olfacto' which means 'to smell' and 'philia' which refers to 'love of'.
Most cases this arousal is from the odour, smell, found in the genital region of another, or even of themselves.
However it is not confined to just those smells, but other smells, that the body creates.