I'm 19 years old and my mom still breastfeeds me everyday. She doesn't really have milk or anything anymore, but everyday around 8pm, we snuggle and I suckle for 1-2 hours before she goes to bed. It's always been this way, and I see nothing weird about it. I know it's supposed to be some weird thing so I can't talk about in public.
It is a beautiful feeling and a beautiful experience. It doesn't get overly sexual, it's just two humans bonding and I wish society was more accepting of these types of things.