Adult Nursing Relationship is a type of sexual fetishism (i.e.erotic lactation).
Suckling from the female breast as an expression of close intimacy and mutual tenderness. The relationship of both partners is based on equality and mutuality.
There exists a very old story mostly called "Roman Charity" or "caritas romana". This story is most known from old paintings showing a young woman nourishing an old man who is imprisoned by suckling him.
i.e. I am interested in finding a male partner who would like to establish an ANR