All things considered, the only thing really special about the Y chromosome is that it carries the SRY gene that determines whether to produce the protien necessary for male development. It doesn't actually do very much else, and there's no reason a superscientist like PB couldn't synthesize that protein (or even the gene itself). At least in the context of what we've seen her being capable of, it's not much of a stretch to think she could easily make a Y-less male. Heck, she could just figure it out from a sample of Finn's cells if she wanted to.
^No yuri pairing involving Kaguya is likely at all. Literally only Kaguya x Miyuki can happen. Thinking anything else is just weird.
Unless you meant Chika and Iino which, while still not gonna happen, at least has no direct competition (yet). And we all know Aka is homing in on that Iino x Ishigami ship.
(Erika is super gay tho)
Oh interesting. In all the phases they were together they are standing on the same ground and have clouds around them. But in that one phase where they tried to date guys the ground is split between them and there are no clouds.
By the end they are together again and in the clouds. Beautiful.
Also, you don't see a bunch of other couples posing standing in a pink tiled room, but everyone is wearing matching butterfly headphones. I dare say that almost every Yuri couple with some popularity has a butterfly headphone picture. That's the power of Magnet.