Sissy for Sister Ch. 01

So Myles instead slinked away up the stairs, to his room, for a shower, hauling his suitcase up behind him. Sienna hurried up afterwards, to head to her own room for a bit more fun on her own. She hadn't said anything, she couldn't admit it, but that was the best orgasm she'd had in a long while. Her panties were soaking wet. She hoped to top it the next time, whenever and whatever that next time might be...