"L-Lucas..." Coco gasped. "Stop… If someone comes in, they might... they might see..."
Coco’s voice seemed to bring Lucas back to reality. He suddenly stopped and held her close while burying his face in the crook of her neck. "Sorry..." he murmured.
He had almost lost control because of his jealousy toward Loke.
Even though he knew Coco loved him now, Loke's appearance and Coco's admitting crushing on him back then stirred up a storm of jealousy within him.
"What are you apologizing for?"