Is it weird to go on a trip with him?

I hooked up with this guy about two weeks ago and we've been FWB's ever since. Not a couple but not just f-buddies either. I like him enough but I'm not looking for a boyfriend at this point in my life. He asked me today if i wanted to go to Vegas with him and some of his friends next weekend. The plan is for us to all take over one suite. It sounds like fun but I don't know the other guys which makes me a little nervous because I'd also be the only girl. Is he trying to make us a couple? Or am I just being paranoid and silly?