A single loincloth

The only thing she could find was one rag. The only logical thing to make it into was a bikini bottom. There was only enough cloth to cover a small area, so it should be her naughtiest naughty bits. However, it was not long enough to reach all the way to her butt, and there was only enough string to go around her waist, not to attach the cloth to anything else. She only had enough fabric to make a tiny loincloth in front, with nothing covering her rear. Oh well, she could cover her breasts with one arm and her butt with the other. Or, maybe she could own it and claim they were studying prehistoric tribes in social studies, and she had to dress like a cavewoman or something.