Not Biologically Related

After getting into the car, Xia Xibei couldn't help but take off her high heels. 

"Are you tired?" Qiao Yanjue asked, concerned. 

"Yes," Xia Xibei nodded decisively, "My legs are tired!" 

She could run for several hours in a row and climb a mountain without taking breaks, but wearing high heels was too much of a challenge for her. She hadn't been in heels so high for years! 

She was still stretching her calf muscles while talking. 

"I'll give you a massage." 

Qiao Yanjue placed his warm hand on her calf. 

Xia Xibei couldn't help but shudder and move her leg away subconsciously.

"No need! I'll use a hot tub later. That'll do." 

Qiao Yanjue shook his head, "You haven't worn high heels before, if you don't get a massage to relieve them, they are going to hurt tomorrow too."