Honestly, that's probably a good sign. They're in a great place physically, even if they aren't necessarily talking about everything they should talk about (or even a little of what they should talk about).
This is that prime college relationship, and often early relationship, shit where you cannot stand to not touch each other every single second of every day. It's super cute, and it's also super uncomfortable for a third wheel. I love it so much! Doesn't mean I'm not still worried about the conversations to come, but this is still good.