Chuya Who Never Gives Up

Prompt source:

"Back in high school, I once played Truth or Dare. The dare was for two straight guys to pretend to be gay, and whoever backed down first lost. But the other guy and I were both stubborn, and neither of us wanted to lose to the other. We've been married for 14 years now, share a bed every night, and adopted a daughter. If he doesn't back down soon, I'll start wondering if he's actually gay."

*This is a Bungo Stray Dogs Academy AU with Soukoku!

*I really wanted to write this prompt, so sorry for the OOC! (bows down in apology)

Theme: Don't be too stubborn