Hey mommies so I have my lovely 5 1/2 year old who recently decided that mommies stomach is a…

Hey mommies so I have my lovely 5 1/2 year old who recently decided that mommies stomach is a punching bag. Today he rammed me like a bull multiple times on random occasions I've explained why he can't do that but it's like he's drawn to it. He kissed my belly when I was laying on the couch then did a cannon ball on it. Have any other mommies had this problem?