Whether they do it or not I can accept it either way as it would be in character for them to go all the way OR find a reason to hold off for the moment.
What makes me thrilled is that these last 2 chapter titles have been reference to Anna and what she is thinking. While we don't get her monologue and instead get them from Kyo, it is still great to see her voicing her feelings. When she literally jumped into his arms when she thought he was about to tell her they needed to continue the arrangement as it was was cute and precious. I thought it was great seeing a couple who actually communicate their thoughts and feelings with each other.
Also, our girl most definitely changed into some sexy underwear just in case things go that route.
No matter what I hope that Kyo gets to stay the night with her.