My FI and I have 5 kids in our wedding party, 3 FG & 2 RB. All are young cousins, between the ages of 3 & 9, and we are very close to all 5. I couldn't imagine our wedding without them. Now here is our problem. There are 2 other children who we are very close to that are not related. One will be 8 the day of the wedding and the other 10. We don't want our wedding to turn into "romper room" so we want it to be "adults only" or "invited only" but a lot of our family members have young children and I'm afraid that if we don't say "adult only reception" our family members will assume that they can bring their kids, even if they aren't on the invitation. But I also don't want to say "adult only" and have 2 extra kids there that aren't family. Any suggestions on how to avoid uninvited children coming to the wedding?