Yeah... not 'segs' like some of these degenerates are thinking, but definitely kissing or making out would be happening here, and it's definitely a lot later on, after they've already acknowledged to at least each other that they are dating. That's my take-away as someone who hasn't read further than this and only technically knows the conclusion of this current volume, so I don't actually know things others do that are re-reading.
To be honest, considering the number of times Anna seems to unknowingly make innuendos, I'm quite sure she's a lot more innocent than you all think. Yes, she's got thirst, but I don't think she's considering sexual acts nearly as much as you all think. Perhaps she does realize she wants that eventually, sure, but she seems so far outside what we'd usually classify as the 'gutter' in mental state, especially compared to Kyo, that the moment she realizes how unintentionally lewd she's been, she's going to be blushing several shades of red.