Derek was a few feet from the entrance of his apartment building, the rain pouring down, when he saw a tall, skinny flash of red run out.
"Stiles?" Derek called out but they didn't acknowledge him, so he shrugged it off and went inside out of the rain.
Derek was brooding about what he's going to do concerning Stiles, to the point that he didn't notice someone on his couch until he was halfway to his room and stripped off his soaked shirt.
"Well, I see that you didn't let yourself go while I was gone."
Derek quickly looked over to the couch, recognizing that voice because he never thought he'd hear it again.
"Kate," he breathed, stunned to see her lounging seductively in nothing but his t-shirt.
"Don't look so happy to see me," She laughed shortly as she got up walked towards him.
"What are you doing here?" Derek asked, because she had been the one to dump him.
"I retrieved that Picasso and thought I'd look in on my favorite distraction," Kate replied with the innocent look she knew made him melt.
"So what? You're going to break up with me every time you need to leave town and come back to pick things up like nothing happened?" Derek said, trying to keep in his mind just how much she had hurt him.
"You can't deny you missed me, and I doubt that scrawny thing knows about this," She said before sinking to her knees and licking up the curve of his hips from his waistband.
Derek shuddered involuntarily, but his mind suddenly focused on what she said. He gripped her arms and pulled her up to question her without distractions.
"What do you mean 'scrawny thing'?" Derek asked.
"This skinny kid came here wanting to talk to you, looking like a pathetic, drowned rat," Kate answered, rolling her eyes.
"Get out," Derek said with a hint of anger, letting go of Kate.
"Really?" She asked, not quite believing what she heard. Finally, she shrugged and walked into his bedroom, gathering her clothes. "Fine, your loss."
Derek didn't move while she got dressed and left his apartment. When the door finally closed, he let out a breath and went to collapse on his bed. He was suddenly exhausted, and sleep pulled at him. As he finally gave over and shut his eyes, his thoughts drifted to Stiles.