Hot Rod has always been a cuddler. I'm not sure who was worse, him or me, he was so little (1.57 lbs) when we got him. I was so afraid he would jump off the couch so I held him a lot.
Maggie was about 2 before she was really so cuddly. Now one of her sweet nicknames is "Maggot" if this gives you any indication of how cuddly she is.