You know, I never thought about the control aspect. I know for a fact that I like to have my breast sucked. They are so big I suck them myself when my husband is at work and I am horny (like now). But, it could be the control aspect, too.
And, yes, I do like to think of him as a baby when he is suckling, especially when he puts his head in my lap and sucks. So, it could be that I like the control aspect, too.
Certainly for the whole suckling experience is a sort of gentle **********. Being mothered is such an incredible turn on. The fact that my partner is able to control when I cum means that she gets all the pleasure she needs before letting me release. I feel vulnerable and small as she instructs me and I can tell from her tone that she's enjoying the power.