Some are born that way, some grow into it, some never do.
Annie was always a snuggler.
Boo has always loved to snuggle. If you aren't sitting or laying correctly he will poke and prod until you move so that he can snuggle with you.
Gracie not so much, very independent as a little girl. She's 10 months old now and is getting more and more snugly as she gets older. Mostly since she was spayed and her pesky little brother has come to live with us.
Yogi, from day one has loved to snuggle.