More girls to be milked like Charlotte, Samantha, Sofia, Celeste (women with huge breasts).
Since Anna is lactating, she now can breastfeed everyone like us, Ken, Master Zen, the werewolf, her fans in both Park and Starcon, Freya, and others.
Since everyone love the milk, they come to the barn. When they see Anna get milked, and found out the milk comes from, they beg her to breastfeed them / drink directly from the source. Anna then can breastfeed everyone at the barn.