As a former single mom(haven't been one in over 15yrs but I was for 9yrs before that), I can understand wanting to see if any other people are going that might be interested in meeting but probably not with teenage daughters. Mind you, I only have sons(26 and 17 now) and I have left my youngest with a friend I met on a motorcycle forum and OMG did my sister freak out over that! LOL Funny story actually, having chatted with Suzie for over a year and met up with her and her BF at the races in Monterey earlier that year(my husband and I), we found out our oldest was going to be in San Diego for two weeks with the Marines(Devil Pups) and we decided that picking him up from graduation and spending a week at DLR would be fun and it would be our youngster's first DLR trip. Well Suzie invited us to her house after the graduation since she was only 45min away and we hung out, had dinner, and she and Curtis wanted to go to DLR with us the next day plus Curtis' son was 6 and wanted to hang out with Ri who was 6 so they said "Why doesn't he stay the night here and we will meet up at the park in the morning. So we did and my sister freaked! "YOU LEFT RILEY WITH SOMEONE FROM THE INTERNET! They could kidnap him!!!"(Heck she would have really freaked had she known I let her oldest son go out with a hotel waitress when he was 16 while we were planning our wedding and he did not return until morning but I am the Bad Auntie!) and I said "It's not like she can pick up and move overnight!" and 11yrs later Aunt Suzie is still my son's favorite auntie and we still laugh about that.
That being shared, I have a really healthy, hmmm, what would you call it..... meter for shadiness, so much so that my entire family(brothers, sister, aunt, kids, husband) all rely on my ability to read people and situations and I have not failed once so if something seems shady or overly solicitous to helping out (such as "Oh sure, have a few more drinks, I'll watch the girls and oh btw, meet my bf that I did not tell you was going to be with us...." etc) I would certainly pull back on the reins.
Now feel free, everyone start telling me what a horrid idea that could be! LOL