"What'd you say?" Satoru froze, slowly retracting his lips away from your neck while his grip on your forearms loosened. He couldn't believe it when he heard you say your ex's name in the middle of the deed.

Satoru couldn't pinpoint his emotions, but he slowly backed away from you with an incredulous expression. You weren't even together. You two were merely with benefits, and he made it obvious that nothing should happen between them.

Except hearing you utter another man's name bothered him.