Arthur and his girls have a pleasant bath in the hot water pond; he fills Nyx and Margaret with his seeds multiple times, and their moans echo around the tent. Eve hears nothing and has a nice rest, but Aria hears every moan, even though they make her body ache with frustration.
The trio doesn't stop after the bath and continue having sex in their bedroom inside the tent, just a thin silk wall away from where Aria is. Margaret only lasts another hour, but Nyx goes wild with Arthur until near dawn.
The next morning, Eve and Margaret seem greatly excited, but Aria has dark circles under her eyes. And seeing Arthur also so energetic, she gets upset to be the only one who didn't have a good night's sleep and also didn't enjoy listening to all those moans.