Roake need not worry about the head on his shoulder. Cherry might have done the very same thing with her brother or father. It didn't have to be sexually affectionate. She was simply at peace right now, enjoying the surroundings and company.
"Ooh, I've been snorkling. I'm not very good at it though. The whole thing with coming to the surface and spitting through the tube is awkward." Cherry could have cracked a joke about how she swallowed instead of spitting, but amazingly, it didn't occur to her. The empath was too busy soaking up the tranquil and delighted emotions of everyone around her. She liked coming to places like this, because most of the visitors were in a good mood. It was hard to be sad, stressed or angry when you were immersed by such beauty.