i just thought they meant there was a specific moment foreshadowing her getting an indirect kiss or more specifically stealing one.
It was not spelled out like a battle plan, but given how those girls act and think it's clear that this would happen. I mean, if I was a girl in that world, with all that competition around me and my own thirst driving me crazy, I would use any given means to make sure I get my fair share.
Especially Hinata who is an excellent liar and pretender. She knows full well how Sou sees her (good girl act) and then he even okay'd her if she would go a bit overboard ("it's okay if it is me?"). Naturally Hinata felt pretty confident in that situation but had Kanaria steal a march on her - not to mention another three hungry vixens ready to strike nearby. With Miku out of the picture for the moment... if I was Hinata then I'd have done anything to come out on top. After getting Sou to let me feed him, I would surely make another decisive move. As would have every other girl on that roof, if presented with such a chance. What would Kanaria have done, if she wasn't knocked into her dream world? The very same, you bet.
Now, if you want forshadowing, at least to what Hinata would likely try to do, then it was when she told the other girls to stop spreading droplets around. While she was still polite, what she really meant was:
Hinata (unfiltered):
Don't you pests dare to spoil myTamagoyaki with your rancid spit... and more importantly, don't contaminate Sou's saliva with your disgusting body fluids, you rowdy sows. I want to savor the pure thing afterwards!
Obviously she did not say that out loud, but I understood her intention the moment I read her lines.
