watering hole

Across the street from my house is a pump that gets a lot of use. I'm not sure if it's more public than other pumps or the water tastes better, but it's busy.
This evening these girls were filling up buckets to take home. They came over and talked to me about school. Eight of them lined up and giggling. Eight of them sisters. Eight, and the oldest is in grade 4. Sounds like the makings for a musical.
I'm going on a major limb of assumption but I doubt their mother is that much older than me, 26 and no kids.
When I came back from getting my camera there were only the five, but still five is a lot of sisters.