OP and wow, thanks, this is so cool. I'm not too fussed about a/b/o biology honestly, so that works. :D (Dunno if you've ever read Suzukiblu's take on omegaverse, but I love her version of alpha female biology. I've also read takes where alphas regardless of male/female have cocks, where alpha females have no cocks, and one verse where alpha females had ovipositors. So yeah, not too fussed, and not too weird lol)
Re: Alpha!Matt/Omega!Frank, A/B/O dynamics