Sure, here is the translation based on your guidelines:
Seeing that Chen Bin seemed on the verge of an outburst, Xu Ruoxuan felt a wave of panic and confusion.
She hurriedly explained, "No! I love only you in my lifetime."
"Then why are you unwilling to keep these words on your body forever?"
"Because it's just too embarrassing, I don't want to..."
"I love this embarrassed look of yours!"
Saying this, Chen Bin changed to a gentle expression.
Softly, he said, "Sis, I love you too. I want to leave a mark that belongs only to me on your body, otherwise, being so far apart from each other, I feel uneasy."
After a moment's thought, Xu Ruoxuan felt his words actually made sense.
She then forced herself to suppress her inner shyness and nodded.
"Okay, I'm willing to leave a mark that belongs to you on my body forever!"
Gulp!
A strong sense of conquest surged in his heart, and Chen Bin couldn't help but swallow hard.
