Have heard of sibling jealousy but my 4 yr old boy is sometimes jealous of mommy kissing dad in front of him...how do you assure the kid?

I've read about this phenomenon when I took a child psychology module in university. I'm no expert on this matter but apparently boys around the ages of 3-6 often experience a phase called the "Oedipal Complex" in which they "love" their mother and are jealous of the father who is seen by them as a rival for their mother's affection. This behavioral phase of a boy’s psychological development was named by Sigmund Freud after the Greek mythological figure, Oedipus Rex. Oedipus unknowingly fell in love with his mother and married her after he killed her husband who, of course, was his father. That is of course just a myth and nothing dramatic will happen in your case. Just keep reassuring your son that there is plenty of love to go around, be firmly gentle as your son plays out this phase. Don't worry too much and don't over-react. If you do not treat it as a problem it will not become one. Like other developmental phases, it will pass :)

I have a 7 year old daughter and a 7 month old son. At first, she was pretty jealous and often remarked that her brother was taking me away from her or if I am always playing with him instead of her. What I did was to make her involve whenever I am with my son. If I am diaper changing, she helps me take the new diapers & toiletries and helps me distract him while I change him. If she leaves for school or comes back from school, it's a routine for her to kiss him goodbye/hello irregardless if he's awake or not. And I often get her to look after her brother while I do other house chores. After a while, she became very very fond of him and would even order me not to make him laugh because only she can

Spend more time with the kid and tell him/her you love him

Take care of kid. Be with them

I have the same problem

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