I feel compelled to point out that by the rules of Japanese hairstyling, Kyon's sister doesn't have a ponytail. It's a side-up.
(I'm reminded of a Fate/Stay Night doujin featuring Stheno and Euryale in which they accuse Shiro of being moe for twintails. Illya asks, worried, if that means Rin has an advantage; Shiro quickly cuts her off. "Ah, no, that's a two-side-up.")
No one seemed to mind when I was living at my folks'...Here's some more, Kyon-kun.Great! Just set 'em down over here!Thanks for the food!Ho!That's what we have aprons for, you know...Aw, it was nothing.Would you take care of the dishes?After DinnerHohwhaaaa!?...why are you getting undressed?A Man's EtiquetteHuh? 'Cause, I don't want to get my clothes all wet from the dishwater.