[Request] Rinko can't catch a break

Ako and Nowa invite Rinko to hang out with them at the beach, though she has different priorities in mind, having spent the entire week doing exams, she only wants to relax and chill out, while Ako and Nowa want to have fun. As they watch surfers from afar, Nowa says she wants to surf as well and Ako agrees, the two look at Rinko, who just says "Yeah whatever, you two can go surfing by yourselves." and seems about ready to take a nap.

Nowa looks at Rinko just laying there completely unguarded, Ako immediately nods and the two position themselves, they hold her arms down, keeping them raised above her head. As Rinko wakes up from the hassle, she's met with Ako's foot rubbing against her armpit and lets out a loud "EEEEEK!" before she realizes she can't lower her arms at all, but before she processes that Nowa's foot comes in from the other side, tickling her belly, she laughs out loud and tries to break free. "Rincchan, why are you so grumpy today? The exams are done, cheer up!" Ako asks as she uses her other foot to tickle Rinko's tummy from the left as well while Nowa's other foot goes for her right armpit, she laughs even harder. "Kyahahahaha! Stop! Just- hihihihihihi! Just go surfing already and leave me alone, please!" she begs, her legs flailing around as she cackles. "Nah, I don't wanna surf anymore, this is way more fun~" Nowa giggles as she makes sure her left toes dig right into the center or Rinko's armpit while moving her right foot on to her ribs.

"Absolutely. And besides..." Ako nods and moves, sitting on Rinko's arm as she then uses her hand to tickle her left armpit. "BAHAHAHAHAHAHA! NO, NOT YOUR DAMN NAHAHAHAAAAILS!" Rinko laughs hysterically, trying to squirm away from Ako's hand, but that only causes her to move right into Nowa's feet. "We reeeeally want to include you in our fun, and since you don't want to do anything, just laying there and laughing while we tickle you is good enough for me." Ako's argument is uncontested as Rinko is laughing way too hard to properly respond, having resigned to her fate as the couple's plaything for now.