Not knowing where you're from I'm not sure if this is helpful. You both sound a little unsure so maybe some gentle encouragement. Have you ever considered a local munch? These tend to be very nonthreatening gatherings where people talk about the lifestyle. some groups have demos and speakers others are more like a gathering of friends. Go with an open mind and your boyfriend may discover that kinky people are pretty normal too. Sometimes there are play parties afterwards but avoid that for the first few times and just get comfortable with each other.
It's a thought, http://www.drkdesyre.com/munchfaq.html has info on Munchs and locations look for something nearby and give it a try. If you have a choice try a couple until you find a group you're comfortable with.
Take care
Mad Lews