They had barely started and he could already tell being with Erica was going to be completely different than how it had been with the few others he had been. She wanted what she wanted and Stiles was picking up on that pretty quickly.
When she pulled away, breaking the kiss, he almost pulled her right back in. He didn't want to stop. He only didn't do that because she started to kiss his neck and jawline. Seriously, why didn't anything happen when Erica was here last time?
He forgot how to breathe there for a moment when she started to grind down on him. It wasn't much, but it was enough. "Is that why you always came after me?" he jokingly asked. Because he honestly couldn't tell. He would have never guessed on his own. He moved his hand away from her ass and up under her shirt, but he stopped halfway, changing his mind. "This needs to go," he said as he grabbed her shirt with both hands and started pulling it off.