Ken is really bibo when he's with Stell hahaha . He's vocal about it and constantly admit it. Even Ate Rose, their former staff (the girl with curly hair we saw I think it's in the part 1 of Mission in Cebu showbreak) is a KenTell ship because Ken is really chaotic whenever he is with Stell and Ken constantly show appreciation towards Stell.
It was fun re-watching their Showbreak episodes with you! Btw, I don't know if I've missed it but have you already picked a bias? I sure hope you can catch one of the legs of their world tour! They haven't announced Asian and European stops yet, if any. But when they do, I hope they'll get to perform in Japan so you can watch them live!