User is Fem! Dazai

Dazai watched as the two girls were.. literally tangled with each other- Atsushi hovering over Akutagawa, kneeling with her legs on either side of the black haired's hips as her arms were tightly wrapped around her smaller frame.

Akutagawa's back was arched closer into Atsushi's touch- their chests now touching as her own arms were resting on the weretiger's hips with a grip too tight to be considered intimate.

...

..Probably because it wasn't intimate at all. They practically hated each other! But Dazai had asked them to do so, so of course they (Akutagawa, but she forced Atsushi too) complied to her orders.

For Akutagawa, she rarely ever saw the brunette after she'd left the Port Mafia four years ago. This was an opportunity she didn't want to waste! She had to please her former mentor, no matter what.

..Even if the setting was in Dazai's dorm room in the ADA- precisely on her bed.. with the weretiger.