I treasure our 'hug&kisses' especially my kid is a boy, very soon he wl not let me hold and kiss him, once I asked him wl you still kiss Mammy when you grow up until 12, of course he said Yeah Yeah Yeah.
Hope he can still remember later
I always kiss my daughter and she do the same to me. Usually, I tell her Mummy loves her every much and she will say she loves Mummy every much too. I think try to do such actions, it must create a very good relationships between Parents and their sons / daughters.