Hugging and kissing children

Q: Is it permissible for a father to hug and kiss his daughter?
A: Yes, a father may hug and kiss his daughter, even when she is grown up and even when she is married. Her entire life. And a daughter may hug and kiss her father. The same applies for a mother hugging and kissing her son. She can even kiss him when he is grown and when he is married. And a son can hug and kiss his mother – even when she is married, which most of the time – with the help of Hashem - will be to his father! The same also applies to grandparents and grandchildren. They are considered like a "great father" and a "great mother." Regarding brothers and sisters, it is an intermediate state where some things are permissible and some are not. All other relatives – uncles, aunts, cousins, sisters-in-law, brothers-in-law, etc. – are like strangers in this regard and it is forbidden to touch them.