"Mhm, your milk is delicious" - something you'd only encounter in hentai till now ;i

Tbh I wonder how procreation works. Considering differing species are gavinh sex, can they also cross-breed?

My theory: Yes, they can, but the offspring always follows one parent, no mixing. Otherwise we'd have noticed chimeras by now (although maybe there's a twist where these students are the elite of the elite and rare pure blooded citizens).