Chapter 1537

When that word came out of his mouth, Serenity and Jackson both froze at the same time.

How long had it been since she had heard him call her that…? Serenity stared at the person in front of her in a daze. There was a time in the past when he would still occasionally call her Sis even though they were already dating.

Because, to him, she was more than just the woman he loved – she was also his family.

He said that calling her Sis made him feel less lonely.

Serenity raised her free arm and gently combed back the wet hair on his forehead, then slowly moved her hand to his temple. "I'm here, Jack. Lie down and get some rest. The doctor will be here soon."

He kept staring at her, as if his headache was less intense than the shock he was experiencing.

Why... did he call her Sis just now? The term felt so familiar to him, as if he had called her that a million times before!

"You..." he said with difficulty, seemingly wanting to ask her something.

"Stop talking. If you talk while havi