Nothing is mine. Review please Thanks to Prescripto13 for the prompt and sorry it took so long.
Sakura knelt next to Karin, and held the other girl's broken arm as she paused to look for Kakashi.
"He and Sasuke are probably beating the shit out of one another." Karin offered casually stifling a grunt as Sakura forcefully set her arm.
"So...how long have you and the old man been fucking around?"
Sakura looked up sharply, tightening her grip on Karin's arm. "How did you know?"
Karin snorted and looked away.
Sakura twisted Karin's arm the other way.
"How did you know?" Sakura demanded.
"I'm a chakra sensor." Karin gasped out. "I can tell when people's chakra systems align."
"What's that supposed to mean?"
"It means that..." Karin paused and looked at Sakura. "Wait you mean you don't know?" Karin began to smirk; Sakura twisted her arm more.
"What does that mean?"
"The only time people's chakra align is because of trauma, or extensive training to make it so, but usually it happens during pregnancy or after the birth of their child."
Sakura's grip loosened on Karin's arm and she met the red head's gaze slowly.