Is it possible that a girl doesn't understand that her top is see-through?

Riskie
Sometimes I visit my female friend. She never wears a bra at home, but usually, her outfit is quite decent. But one of her t-shirts is tight and hugely see-through, like the one on the pic:
Is it possible that a girl doesnt understand that her top is see-through?
When I see her wearing it I can't stop staring and I always think about whether she does this on purpose. She can wear it not only when I come but in front of other people too (for instance, delivery guys or servicemen).
What do you think of it?
She likely thinks that it's not see-through
She likely knows it and wants to attract attention
She likely just doesn't care
This t-shirt is absolutely ok, I could wear it too
Select gender and age to cast your vote:
Is it possible that a girl doesn't understand that her top is see-through?
21 Opinion