I had a party and my friend brought some girls. One of them was really cute so I started talking to her. We hit it off pretty well and planned to go out. Well we went out last weekend and we got along fine, I actually like the girl a lot but I find towards the end of the night she's 17!! I'm 22! I kept telling myself, no it's too young but the girl is really mature and looks older than 17. I just keep getting this knot in my stomach when I keep thinking about it. Should I just go with the flow and see what happens or am I a sick dude for liking a girl 5 years younger than me?