my husband is turned on by my leaking breasts

During sex I leak a lot and he loves it. I love nipple stimulation during intercourse, and he never use to perform it much until now. He says it just turns him on and he likes the taste. And it turns me on because he penetrates so much harder and I have like instant orgasms. But there is still part of me that feels kind of dirty because that's my babies milk...what do you ladies think? Is this a weird fetish?