Oral stimulation of nipples is a human sexual practice. Typically, one person will orally stimulate the nipples of another person. The stimulator may lick, suck, or bite the other person's nipples.
A related, but far less common sexual practice is the paraphilia of erotic lactation. Erotic lactation involves deriving sexual stimulus from interaction with or consumption of breast milk, often through adult breastfeeding.
Another sexual act consists in a woman licking her own nipples so as to stimulate the partner by this vision when it's considered to be erotic.
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