Friends or more than that?

I've grown up with this family and have done farmer's markets with them for over 9 years. We see each other every week and are very close. In the other family, there are twin boys and two older girls. Growing up I always had a crush on one of the boys and became really great friends with both of them, as well as their sisters. The one I had a crush on is the teasing type and we treat each other like brother and sister. In the past year, his family and I have noticed that he's been hitting on me but in a teasing way. His family has repeatedly said stuff to me about it and think he really likes me but he won't admit it. He gets defensive, apparently, every time his family asks about me. Every time we look at each other, we laugh or smile, we can never keep a straight face. He won't say anything about him liking me though. We don't talk about this stuff so I don't know where we stand. He talks about girls around me, like what kind of girls he likes, maybe to make me jealous or to hint at me, but I just want him to be honest with me. I don't know how I feel about him because he has never made it clear if he likes me or not, and it's hard for me to understand our relationship when he acts like he hates me (jokingly) one second and the next it seems like he likes me. I'm really confused and just want to know what you think I should do. Like I said, we don't really talk about this so I don't want to make it uncomfortable for me, him or our families because we're all so close. He's a year older than me and is at home working on the farm and this fall I'm going to college 6 hours away, so I don't know if it's worth worrying about. Any advice you have would be awesome!

Kiss him. You will find out real quick if he likes you or not :)

That, my confused friend, is how guys act when they are in love, at least in my experience, being a guy in a group of guys who all have steady and great relationships, I can tell you from personal experience that he almost certainly likes you and wants do be more than friends.