You don't have to worry about him being any less of a 'boy' when he's neutered! Mine is unbelieveable, the cutest happiest cat when the cat flap is open, but when it's shut!... Grumps around the house, thumping down the stairs and kicks us off our own sofa! No joke! Total boy! And neutered at 5 1/2 months. Awww... he's sweet.