It wasn't uncommon for Madoka and Sayaka to exchange quick little kisses whenever they could. If they knew they were alone (Or if one of the other girls wasn't looking) they would often give each other little pecks on the cheek or Madoka would simply jump up and capture Sayaka' lips with her own, breaking away just as someone strolled by.
It was also just as common for Sayaka to take things further if they had the time. In this kind of situation, Madoka would usually end up pinned against a wall, with Sayaka holding her arms above her head with one hand and using the other to tilt the smaller girl's head up. Under normal circumstances, they would refrain from doing this in public; but Sayaka's been a little out of it all day, and Madoka's a little too tired to really fight back.
"Sayaka, we shouldn't-" Madoka's half-hearted scolding is cut off by her blue-haired companion pressing her lips to hers again. They break apart for a second but before Madoka can finish her sentence, Sayaka leans back in, determined to prevent Madoka from talking any sense into her.
The two girls are leaning against the wall just on the other side of the lockers, Sayaka keeping Madoka firmly pinned against it. The tired pinkette's legs tremble slightly as her girlfriend holds her wrists a little tighter and pressing her body against her.
"Madoka? Sayaka? Are you over here?" The two girls freeze at the sound of their classmate's voice, hesitantly breaking apart and leaning out from around the corner.
"H-Hitomi?" Madoka coughs awkwardly, jabbing Sayaka in the side with her elbow when she hears her laughing. "Can I do something for you?"
"Where have you two been? It's almost fourth period and you two still haven't eaten!" the green-haired girl huffs, dragging the two girls down the hallway; completely oblivious to Sayaka silently apologizing to a madly blushing Madoka.