One

"I need you to give me a hickey," Jennie says, a little out of breath like she's just run across campus to deliver this incredibly important mission.

"I..." Lisa starts, brain going unfortunately muddled. "I beg your pardon?"

Or the three times Lisa gave Jennie a hickey and the one time Jennie returned the favor. (+ more parts)

©️ story not mine, this is an adaptation. credits to the original author of this story.