Nope. You cannot ask for any cuter chemistry between Irene and Yeri than this.
As you can see in the video above, Irene and Yeri were in their waiting room, spending their free time. In front of the camera, Irene said, "Joohyun is so bored now. I said, Joohyun is so bored!" She said it with an overflowing aegyo, teasing Yeri who sat next to her. At first, Yeri managed to keep her poker face, but as Irene kept adding leveling up her aegyo, she lost her control. Yeri burst into laughter, together with Irene.
Image Source: Youtube 'Velvet.smtown Red' Screenshot
Source: [Youtube] Velvet.smtown Red