"brotherly affection" is correct and usable in written English.
You can use it when you are describing the strong emotion that exists between two brothers. For example, "The two brothers shared a special bond of brotherly affection."
If the display of brotherly affection felt forced, it was difficult to see it as fundamentally disturbed.
Long after, McGwire still treated Giambi with brotherly affection, with advice for those baseball experiences that feel lonely and cruel.
The small metal grille on the stable wall separating Kauto Star and Denman looks worn and battered by brotherly affection.
But the brotherly affection was also an indulgence of Tim Finn's out-of-tune singing and of a repertory that prized earnest autobiography above all.
Nelson, however, immediately feels some sort of brotherly affection for Annabelle, and he determines "to give her her father, his father," regaling her with memories, some bitter, some sweet, of Harry.
Indeed, he regards blackface as an act of "brotherly affection toward the black man" and that performers like Jolson humanized blacks for white audiences, thereby laying the groundwork for racial equality.
This guy, who he loves, who he has brotherly love and affection for – they're only related by marriage, but they oftentimes do feel like brothers, not just brothers-in-law – that knowledge, how does one take it all in and process it in a mere matter of seconds?
A sudden flurry of fireworks threatens to overshadow (What's So Funny Bout Peacece, Love and Understanding, but it's the brotherly love onstage and affection from the charmed audience that illuminates Kew Gardens.
Is her affection towards you brotherly or potentially romantic?
Friday is Prefer Day ("Be kindly affectioned one to another with brotherly love, in honor preferring one another," Romans 12 10), which means, for example, letting your sibling pick the hymn the family will sing in the morning.
CITY OF BROTHERLY LOVE Terrell Owens said he expected nothing but affection from Philadelphia fans Sunday night.
