Can we make babies with Cyrus? If so, how?
Very, very carefully! Cyrus is big so you've gotta be careful not to get stomped on as is, but his...equipment...is an even bigger monster to deal with. And when it comes to fucking something so much smaller than him he can get a little ornery with excitement, so in all likelihood he may need to be tied down during the act. It's humiliating to be hitched to a tree in the woods like a common horse, but if it means he can breed without piercing his partner in half, that's a win. Cyrus, for obvious reasons, can't actually reach his own junk and it's not the easiest thing to mount something fuckable with such an enormous, heavy lower body. He's right around 1200 lbs!
So Cyrus gets REALLY agitated when he's aroused because there's almost nothing he can do to relieve it by himself. He tries to avoid everything that might turn him on in day to day life, which means that when he finally has a soft hole to use he's a lot more to handle than you probably thought. Breeding is second nature, there's not really a conversation about it. You let him fuck you and didn't run away, so you've basically given him permission to rut a foal into you with as much force as necessary. Several rounds should do the trick. Or more, maybe all night?
Just wait until you actually start showing, because people are gonna think you're almost to term when you're only a few months along. Centaurs only breed one baby at a time, but they'll be a big one for sure, just like their daddy!