When I give bones, it's always one to each of mine.
I wouldn't dare not !
Anyway, it doesn't matter how much larger bone my Female puppy Becca
gets, she always drops it, and goes over and my Male (2yo) Sneakers
always lets her have his, and he goes and chews on the one I gave her.
He's SO tolerant of "His Puppy", bless his heart !
(even though they are Brother/Sister, same Sire/Dam)