While since the first day we met, he is a boob and ass man, he loves to suck on my nipples, and make no mistake, I love it too.
I breast fed 2 babies until they were between 6 months and almost a year. It was, aside from having them inside me, with me the only one who could know, was the most intimate experience.
When he first started out he was way too soft and gentle with my nipples, I could hardly feel him doing anything. I finally told him one day that I like it hard, the harder the better. It took him a bit of practice, but he finally got it. He said he was afraid of breaking me, lol.
I read several articles on the subject of men breastfeeding, while it was better to be lactating, even being dry, worked for a lot of men. The article basically said that men have a few basic needs, and one of them is to feel safe, secure, and loved. One of the ways to accomplish this is for a man to suckle on the woman that he loves, lactating or not.
The articles stated that according to their clinical studies that when men are put in a nice safe warm and secure place, usually under the covers, having them lay their head on your arm and suckle on a breast releases chemicals in their brains that automatically take them back to that time in their life when they were safe and secure, warm and cuddles next to the person they trusted most.
Now I need to stress here that in no means was this article suggesting that men need to revert back to being babies, it didn't. But by an adult male, suckling on a breast like he is breast feeding, will often set off those endorphins that automatically take him to his safe and secure place. It has been known to relax them, to help with taking care of their fears, allow them to feel safe and secured, and most importantly, feel cared for and loved.
In my personal experience, I prefer him to suckle on my right side the most, which is where the girls seemed to want to go more than the other side too. I have also noticed that I am doing things instinctively while he is nestling that I only did with the kids as well like make sure his head is propped up on my arm, and I always V my fingers, index finger on top of my breast making sure he can breathe, and the other middle finger under his chin to help keep him latched on. I love to watch him doing that. We have often fallen asleep that way.
The article also talked about what the woman goes through emotionally when a man suckles on her. While yes both parties involved can get horny from doing such activities, usually it doesn't cause that sort of reaction in either party. It was stating for women it brings out their natural "motherly" instincts, making them want to cuddle, and protect, and nurture him. Take it from me, there is nothing more intimate than having a partner suckling on you. It also make us feel very loved, needed, and protective of whatever is suckling on us at the moment. It's a wonderful feeling.