Too sweeeet!!!!
Is only logical that the kid wouldn't understand why THAT kind of like should be a secret, he's too young and doesn't fully understand what he's getting her sister into XP
Alright, I was worried the kid would become a third wheel (he might in future dates) but now that we've confirmed Saki's feeling, then that's fine... They can take their time and have fun however they like.
Thanks !