He's fine now. I think he was just excited to finally have more than one gal. Plus he's an awkward shape (Standard body, bantam legs and wings, top heavy comb and larger than standard head). Not to mention girls have a good 20 acres to flee onI hope for you’re hens he wil be more gentle as he grows older. I also read that young roosters are more horny than older ones.Maybe nice to give the girls more hiding places?
Also don't believe the whole teenage phase. I've never dealt with that before. Mine are always either decent or horrible and stay that way after that phase should end