Disclaimer: I don't own Durarara!
Author's note: The prompt didn't give me much to work with, but I thought it was worth giving a shot. "shizuo wants izaya to choose between he or human"
"Flea, I want you to choose."
Izaya spun around in his computer chair to see his lover and enemy, Shizuo Heiwajima, "Now what do I have to choose between, Shizu-chan?"
"You're in love with all humans, right?"
The trolling brunet smirked as he nodded happily.
"I want you to choose between me and humans."
"Really, Shizu-chan? Are you trying to tell me that you're ijealous/i?"
Shizuo slammed his hands onto Izaya's desk, causing it to shake uncontrollably, "Damn it, Flea! Choose! Me or humans! What's it going to be?"
Izaya leaned back in his seat; he pulled his legs up to situate them on the desk, "Why would you want me to choose?"
"Just give me your damn answer!"
Shizuo's face contorted in anger, more so than it already had been.
Izaya mocked the action of thinking before finally replying, "Humans."
"You fucking bastard!"
Let's just end this with saying the two split their relationship and went back to their old ways.