[That is a sure distraction from whatever he was going to say while he was thinking.
However he thought that this was going to go... this isn't it. Yen is so free with her affections and, given all of her flirtatious teasing, he was anticipating something uncomfortably awkward that he would be hearing about for the rest of their time in Marina.
But then she's gentle and sweet and he finds himself melting just a little and kissing her back.