At the moment he's the little boy who crashed the ladies' book club meeting. :D
Soon things will go nuts as his hormones hit and then, sometime in the 6-9 month range, he'll probably take control of the flock.
When my first rooster for this flock was taking charge, at about 7 months, there...
In general, if there's no blood there's no problem. :)
If he's not going after the hens aggressively and they're not beating him up but just giving him a few sharp pecks to teach him respect it will probably work out in due time.
Good luck. :)