18mo ds breastfeed usually at bedtime and once in the night. He is a very bad sleeper who usually starts in his cot (I put him in after he had fallen asleep as he will just cry for hours if I try to put him in awake) and ends up in bed with me for about half the night. He will have a quick feed before sleeping when he gets up in night. This is all ok with us, I would prefer him to sleep through but it is manageable. What is causing me problems is the fact that after a feed and whenever he stirs in the night (and also if he is having a cuddle during the day) he will hold my breasts, sometimes trying to suck and others just kneading. It seems to be a comfort thing and I really want it to stop as it is very disturbing during the night and embarrassing and inconvenient during the day - not to mention uncomfortable!
I have tried: offering a dummy, offering a cuddly toy, offering a drink in both bottle and soppy cup.
I'm really not sure what to do next. Any advice gratefully received!