My DS has always nursed on demand. I work, so during the day he gets milk in a sippy cup, but when I'm home he nurses whenever he wants. He's 13 months, eats solids really well and has no problem with the cow's milk when I'm not home.
The problem is that now he wants to nurse constantly when I am home, and I'm getting a little annoyed! It's also how he "asks" - which in reality is just that he dives for the boobs if I'm holding him and roots around in my shirt with his hands if he can reach it. It was cute at 10 months, not so much anymore.
It's especially bad in the early morning hours -- between 4 and 6am he wants to live in my nightshirt (we co-sleep), and he'll throw the pacifier away if I try to replace my boob with it after I think he's nursed a good amount. At that time of day I just really want to get a couple more hours of sleep and he won't let me (I can lightly doze while he nurses but it's not really sleep).
So how can I set some limits on this constant nursing and touching my breasts? Without disrupting the nursing relationship completely, b/c I don't want to wean at all, I just want some more control over how often. He doesn't say any words yet, but he does understand "no" pretty well when we warn him away from something dangerous.
I'd also be curious about folks general strategies for dealing with this transitional stage between baby and toddler. The parenting books I've seen all deal with kids 2 and up and assume you can use language effectively to communicate, and I just don't know how much he understands yet - he's a little behind the curve in social skills.