I'd cheerfully snatch that second pullet, and I wonder if #1 is not her also, or a sister. Wow !
Good eye! Yes, they are at least half sisters. They come out of a pen with a strong cock on three different hens. So, I'm not sure of their dam.
Washing question: I wash them, rinse them, and them put them in fabric softener. Do I rinse out the fabric softener? Or do I just let them dry?