Remus shrugged, unconcerned. Given all the things he'd been contemplating recently, the idea that there were sons with male lovers hidden in the family annals was likely not the strangest thing he'd come up with in his mind. "Quite probably, but also in desperate need of options. Given historical context, it's not unlikely there are at least one or two Blacks in the history of time that have had less than traditional tastes and managed to work around tradition satisfactorily. Not openly, of course, but this time seems to have developed an lens by which it views history to find these things if the books I've been reading are any indication of modern historians."
Really, he just needed a start, a seed to plant the idea. Then he and Regulus could see what they could make of it.
Raising an eyebrow, Remus shook his head. "I was going to ask Sirius to look at them with me, actually." If they hadn't been protected, he would have looked himself. But, he wasn't callous or desperate enough yet to invade family privacy, no matter how much he believed Regulus had meant it when he said Remus was family forever. "Although, you could tell me if they look like journals to you. I haven't exactly ruled out illusion spells to conceal some other books all together. Traps for the unwary looking into family history, etc. And you have a little Black blood in addition to being pureblood."