new boy and my sorority

[AlphaXi4983]

okay so i have a new boyfriend. we've been good friends for four years, but we've only been dating for a few weeks. he's very reserved and mature for his age (he's 21 and im 20). he doesnt drink often, is intimidated by large social setttings and is very shy around new people. my sisters are very outgoing, usually in large groups, tend to drink a bit, and can be intimidating if you dont know them. i too am shy around people i dont know so i can understand how they could, um, scare him. i really want him to meet my sisters and understand why they mean so much to me, but i dont know how to get them all together. has anyone else been in a situation like this? like i understand if he doesnt want to go to large parties or what not unless he's comfortable with them, but i dont want him to miss out on date parties or formals or other things i would be bringing him to, and i want him to be able to chill with me and my big and little and other sisters in smaller settings. help!!