Adult Nursing Relationship & ABF. Mia Monroe . Our Favorite ANR /Adult Breastfeeding positions. This site is for those of us truly interested in ANR and all it has to offer. We believe that ANR / ABF relationships should step out of the shadows and into the. They Why's of ANR / ABF By definition an 'Adult Nursing Relationship' is any relationship in which a woman who is currently lactating is being.