A young girl holding a toddler.
Two old ladies are making out at a strip club.
The female can only be you or old.  There are either one or 2 females not both.  The female cannot be both holding something and making out at the same time.
One can be either old or young. A girl is a single person while ladies refers to a group.  Toddlers are not allowed in strip clubs.
girl cannot be holding a toddler and making out at a strip club simultaneously.