This whole thing is a tl;dr as to not convolute things: This girl. I attracted her, kino heavy. Got her to kino back. Didn't hang for a while. hung out with her 1v1 one night, had perfect oppurtunity, got her to say "so... what now?" didn't make a move :P. she told me she wants only casual hook ups bc it's the summer. she currently has 1 fwb but it's her ex who treated her like shit.

my plan is to straight up just ask her one day if she wants to hook up. My question is: is this strategy shitty in anyway? She's given me extremely subtle ioi's because she's kind of like that. Is all attraction lost because i didn't make a move when she subtley suggested at it? i don't want her to think i'm unattracted to her because that's not the case, but it's hard for me to see any room for the go ahead with her... they're all very subtle, only a few are prominent (e.g wanting to hang out when i only contacted her to return something she left at my house, etc)

Main question: Bottom line, i know i should assume attraction and the answer to every question i don't ask is no, but i guess i'm really just posting for moral support: should I just ask her to be FWB?