u/EmbarrassedIdeal1208

I want my older sister so badly it's not even funny. I really started noticing her more after she accidentally sent me her nudes.
I wonder if it truly was an accident though. I say that because a couple years ago she came into my room while drunk and asked me it her ass was fat. Flustered and not knowing what to say I just said "I guess" while she was turned around to give me a better view. I've thought about letting her "accidentally" catching me masturbating in my room. She sometimes comes into my room to use my bathroom. I've always chickened out though.
We have a trip at the end of the month together where we are sharing a room with only 1 bed and 1 bathroom. Any ideas/ suggestions of what I could do to possibly see if she's interested?