If every time you collect, she collects, that's highly suspicious of one person. If I made the game, I'd watch for stuff like that in an auditing script. If you are both acting independently, even better if on different computers/phones/tablets, then you might be safe. Different fountain sites have different definitions of what they consider a human. And if you payed to play, having those longer collection times, I think it's even safer as the times could be spread out further apart. Using the same device for both accounts can get confusing and pop up as a nice red flag to ban. I hope people use common sense here as this is very fun.