Bestiality = Sex between HUMAN & ANIMAL This one is NOT bestiality. There're many WereWolf/Cat or Animal Characteristic in yaoi but only few are bestiality If you're afraid then just don't read.
First page "It was God's wish for Beasts and Humans to copulate", well that's some punk god (≧∀≦). Sonea
It's a giant wolfman like person who can speak english/human x a human who is able to give birth thanks to that wolfman. Or in short, it's the beautiful world of omegaverse where men can get preggers. So it kinda is? It just depends at how you look at it.
I'm afraid to read this. Is this bestiality? Is this good?
http://www.mangago.me/read-manga/pendulum_kemonohito_omegaverse/