I'm so into reading fanfics about Monster x reader (mostly male reader) and now I have a question...

What tf does Centaur sex even look like, I read one last night and I can't fucking image them fucking like not at all, I'm sorry but how-? Is there like a specific position for that???? What position they have to make just so the dick can enter the butthole ????

(This is mangago so let me ask some weird ass question)