You mentioned 2 newborn...congratulations on having twins! Its quite normal for bf babies to have watery poo...just make sure gets enough fluid, remain hydrated and developing normal
Newborns naturally have watery poo:) as long as it’s not 10x/day, and baby’s drinking and peeing well, that’s fine
My nb full on bm always is poonami watery s*** it's normal but not those super watery kind.