I don't want to imagine what Vimes would give birth to if he did manage to get knocked up by the city (because this is Discworld, it's possible.)

On the other hand, in Omegaverse, I'm pretty sure Sybil's v. v. alpha and he's the one who carried Sam.

....which leads, inevitably yet inexplicably, right back around to GOING INTO LABOR ON THE BARRICADES.

The narrative causality, augh. The narrative causality is inescapable.