Definitely an option. The boy will love having some girlies. I've had mixed groups with neutered males. Should be a relatively easy introduction but use the carrier method.
Crowley, Paddy, Chuck, Kevin, Loki & Odin
Sweet dreams forever Lola, Willow, Amy, Jennings, Amber, Reggie, Cordelia, Saffy, Remi, Harvey, Penny, Tia, Bernie, Mika, Ruby, Pearl, Castiel, Simon, Luna, Bobby, Meg, Dru, Kristal, Misty, Garth, Zen, Sam, Alvin, Theo, Dean, Monty