For those saying Iori prefers being called Io-kun, read the chapter again. The shudder was not knowing how to respond, then Hazuki got closer and fluster Iori, and she responded to the perfume bit. In other words, STILL EGG IORI.
Jeez, I love that Claire is letting down her barrier a little to see how genuine Rei is to her!!! AAAAAAAA, I just love tsundere girls that are like this. They got a reason to be all defensive, and you know something bad happened to them so they keep up the act. Claire just wants someone to be...