After being able to roll belly to back at only two weeks old, the other direction took a lot more time to achieve. Blaine finally did a back to belly roll last week for my mother-in-law! I haven't seen it yet but I do see him get REALLLLLY close everyday where he is on his stomach with his arm still wedged under his body. So funny how kids always do things for grandparents first! Babies love them more! Stinker-buckets!