Grabbing face

My son is constantly grabbing at my face during nap, bed time sometimes during his bottle. Anyone else experiencing this , it’s cute but most times it hurts 😂 I try to tell him no that’s not nice in a strict but not mean voice but he just laughs at me and then I laugh lmao not really working. Then if I try to grab his arm so he can stop he just fusses and screams at me lol. 😩