For Eri, it was clearly just the girl's playful whim to get the best out of this situation, but Futaba's reaction was driven by something else.
Maybe she was feeling left out? Most likely. In any case, this wouldn't last for long since they still have to go home tonight.
"You're unbelievable, Onoda-kun. Help me scold Eri." Futaba pouted, her arms still crossed as she glared at me.
"Sorry, she's claiming her 'best friend' privilege," I answered flatly, acting like it was out of my hands.
Eri laughed at Futaba's reaction, her eyes sparkling with mischief. "Futaba, don't be so grumpy. You know you're also welcome to join." She tightened her hold on me, pushing her not-so-bountiful chest against my arm.
Akane glared at her, but the glint in her eyes showed she was enjoying the tease.