Things have changed since last summer.
For starters, Raven returns to camp with a limp and an attitude adjustment, Octavia can't bear to be in the same room as her best friend, and Clarke and Costia are left to pick up the pieces.
Not to mention, when a stranger stumbles from the woods, wide eyed and out of breath, things start to get even more interesting.
or
A Summer Camp AU in which Raven and Octavia are best friends with feelings™, Lexa's a runaway with a unique past, Clarke longs to figure her out, and Costia just wants to play baseball.
There isn't much that's worse than no experience when you want to impress someone. Lexa is itching to get Costia's attention and liking and because of her lack of experience in sleeping with people, she asks her best friend and roommate Clarke to help her out.
It's just a favor. Just one time for educational purposes. Just one night that starts a little awkwardly and ends in the struggle of ignoring you fucked the person you live with and that matters to you the most. Of ignoring it might've just been the best night of your life.
But the promise stays. One time and never again.
Right?