The first ANR experience I had was in my mid twenties. I had started a new birth control pill, and one of the side effects was that my breasts swelled. More than swelled, in three months I went from a full D cup to an H cup. They were incredibly sensitive, and it felt amazing when my boyfriend suckled me, like the was relieving them.
One day he said something was coming out of them. I was embarrassed, but he said it tasted good, kind of sweet, and suckled harder. He smiled and said I think you're making milk, and went back to my breast, suckling deeper and harder.
I'd heard about the "let down", but I had no idea it would feel so good. It felt like a dam breaking, my pussy rushed wet as milk squirted in to his mouth. He moaned as he swallowed, his mouth continued to pull, my nipple pressed against the roof of his mouth. I came so hard without him touching my pussy at all.
He pulled me on to him, guiding his cock in to me, and lowering my other breast to his mouth. He suckled again, getting a fair amount from that beast as well. He bucked as he swallowed, cumming a bucketful I'm my pussy as I came. I looked down at him, milk droplets on his face, and knew this would be our new thing.
Five years later, we revel in our nursing time. Making a point every few hours to drain me. I'm so glad I found my true love, adult breastfeeding. I never want to go dry again.