Did he actually bite Mo or did he stop before doing it?

I think he bit him lol

he bit him because in the raws Mo said "What are you biting?"

Ok thanks, because normally these kind of actions are written(not in bubbles). You know like when its written : squelch / spurt / thrust / kiss / bite

I hope one day we can see squelch/spurt/thrust or just kiss in this manhua.