Milovana.com

I've noticed that if i hover over the fullscreen button or swap between fullscreen and not then pages on teases that don't have a visible timer will turn to the next page. And some pages appear to not move on until I've done this, though it's hard to tell if this is the case or not because with there being no timer I don't know the intended length of time.

Can anyone tell me if this is some kind of bug or is it supposed to be that way?