Why does my siamese do this?

i have 2 siamese and one of them is like having a new born very needy and wants to be with me and my husband 24/7 and at night he crawls on my husbands pillow when he’s home and just sits there for a very long time every night licking my husbands head and it’s the weirdest thing. any thoughts on what it means or is my cat just a freak?