These girls are not stressing over what they'll do with the rest of their lives. They're not even stressing about what they'll do for the rest of the night, as long as it ends with them getting laid. They may not be big on making plans, but they're huge on having fun! They're the party girls, and they're ready to get down and dirty with anyone they meet.
(The original collection of these stories appeared in "Pretty Little Sluts", available at Smashwords and other retailers, and are provided here just to make them easier to read as a single tale.)