Izaya was walking down the street when he was spotted by a member of a gang he severely ticked off. That guy is hanging out with quite a few other gang members at the moment and he starts getting their attention so they can all chase him down. They aren't that quiet about it and Izaya hears his name said alongsIde various unpleasant statements. He looks around him just in time to see the guys start making their way towards him. He takes off running away with the same finesse as when he's running from Shizuo. With them chasing after him he ends up in ikebukuro and sure enough Shizuo shows up. The gang is still behind him chasing him so he hides behind Shizuo.
"What the hell is going on flea?"
"Haha, funny story. I'll tell you about it later. Now hurry up and help me."
"Why should I?"
*whispers in ear* "simple. You can't fuck me if I'm dead."
"True. Well then you owe me for this."
After he kicked the asses of a couple of them and the rest had fled he turned back to the smiling flea.
"Yay! I knew you could do it!" Izaya said gleefully as he jumped up and down.
"Shut up flea. I don't wanna hear your shit" Shizuo glared at him.
"Oh come now, I was only trying to be nice."
"Whatever. I'll see you tonight then."
"What?"
"Don't you remember? I said you owe me. I'll be collecting tonight so you'd better be ready" Shizuo said with a smirk.
-that night-
Izaya was lounging on the couch when he heard the door. Shizu-chan let himself in carrying a bag with him. The door was unlocked because Izaya had learned that if it wasn't then Shizuo would usually end up breaking it. And Izaya had grown tired of needing new doors.
"What's with the bag?"
"I figured we'd try something new tonight" Shizuo said as another smirk slipped onto his face.
Eyeing the bag Izaya smiled weakly and asked "what brought this on all of a sudden?"
"Simple. You owe me. And I'm gonna take advantage of that fact. Now strip."