So, since the middle one has a cat tail, is that Azusa? Then maybe the nekkid one would be Mio, because she looks kinda embarrassed. And I think Mugi would be the one who wears some lacey pink panties. But then am not quite sure about the dark and white panty ones, which would be Ritsu and which would be Yui
omg yea the last is probably yui. the first is probably ritsu cus that girl looks arrogant and the second is probably mio cus she woudl wear something normal.
Ashelikesdanbooru said: The "Are?" sounds more like Mio than Yui.
Ritsu, Tsumugi (her hips are more adult that Yui's, and the posture is more cajoling), Azusa, Yui, Mio.
I just couldn't really see Yui wearing lacy panties, and unless some one pulled them down really quick I couldn't see Mio wearing none. But I suppose it doesn't really matter anyway.