Ive 3 males and 2 females. the girls are really aloof and don't have any kind of contact with any other cat unless theres a bowl of food involved and they've both decided to only live downstairs.
My 2 youngest males have just started playing together and snuggling, the kitten is 7 months and Monty thinks its great that another cat wants to be his friend. The kitten also plays with the neighbours kitten, very cute together. My old boy tolerates all but my little female.
My bridge cats used to snuggle together infront of the fire, you cant beat a pile of cats.