I WOULD SAY HAVE HIM FIXED ASAP, AS HIS MATING INSTINCTS ARE INCREDIBKY STROONG AND IF HE SENSES A QUEEN IN HEAT, THEN HE WILL BRAVE ANYTHING TO GET TO HER SIDE.
THAT MAKES HIM VULNERABLE TO CARS , DOGS AND OTHER DANGERS.
FOR YOU CATS SAKE, HAVE HIM NEUTERED.
WE DONT NEED MORE UNWANTED KITTENS.