Fingers or lips?

"Michael," Gabby looked for Michael's eyes. "I'm sorry, okay? I know you must be angry because I called you my brother..."

Michael looked at Gabby's face with a cold gaze. However, his body felt hot inside, as if there was magma erupting from him. 

Gabby bit her lower lip, her thumb stroking Michael's wrist. Up until now, she would always whine and apologize like a child whenever she caused trouble.

"Michael, Michael ..."

Again and again, Gabby called out Michael's name.

Michael sighed. "Who am I to you?"

Gabby frowned and then looked away. After making an indistinct voice, she whispered her answer.

"My husband."

"Hmm?" Michael put his ear to Gabby's lips. "Why are you talking so slowly? Are you embarrassed?"

"I...," Gabby bit her lower lip, "Yeah, I just… Geez! It doesn't feel right if I call you my husband on campus. I'm just afraid that your reputation will be bad because of me..."

"Really?"