The craziest thing I've done? Nothing, but me (29) and my sister (19) have been getting really close lately. We never were close before but things have gotten really emotional and close lately. When we hangout, I put my arms around her, she rests her head on my shoulder, stuff like that. We drunk text each other a lot of affirmations and "I love yous" too, and the vibe is just... different. The energy reminds me too much of falling in love but I have no idea if she feels the same and I'm not going to ruin my life and reputation by crossing any boundaries. The most I can say is that if she crossed that line first, I would love to.