Is it normal for a girl to swim In a bra and thong?

My bestfriend is a girl and I have liked he for a long time but she doesn't like me onl as friends and we were at her house and we went to go in the hot tub and she went in with a y Victoria secret bra on and a thong? Is this normal or is she trying to tell me something? Now I can't stop thinking about her and her ies and how I would love to be in bed with her what should I do?