Can u spot the difference?

If I hadn't known them,I'd think both of them are guys.Why?Ren doesn't have s and Amber probably 'tied' hers /shot/ And wait...I can't see any Adam's apple in both D_O Now this is confusing

I can ~ even though Ren and Amber are confused for the opposite gender one has an Adam's apple and the other does not. And one has while the other does not~

*scratches head* no and I feel bad too

The biggest minds in kpop history LOL <3
Sometimes i still mistaken them both for the opposite gender of what they really are xD