I've been staying at my guy's fraternity house on the weekends since April and if you make an effort to get to know the other people in the house no one makes a big deal if you stay over. I regularly eat breakfast with the guys and hang out...but I was friends with people in the house before he and I got together. Honestly I think when you're ready for it go for it. Yeah the bathrooms are gross and stuff like that but it can be fun too!