[Well, that's an interesting answer of itself. Ren tries (not very hard, but still) not to look too delighted by the appearance of a magic shield, but he seems to consider Riku's answer very seriously. At length. With the most serious of thoughtful pouts on his face.]

Hmm...I was kind of hoping for someone the fiery ones could play with properly...

[Almost on cue, one of them makes an odd burping sound, and Ren readies the bubble slime again before he realises it's just burping smoke this time.] It'd be sad to just leave them alone when they're so cute, right?

[With a wide, cutesy smile, he holds up the bubble slime to approximately Riku's face level, though at least he has the decency to not actually shove it into his face. Even if that might be partially because of the shield.]