Watch for a bit longer.

Peeking through a tiny gap between the blinds you are both shocked to find them together in a very intimate situation. Carla is lying back on Mr. Kenny's desk with her dress bunched up around her waist and her breasts exposed. Mr. Kenny is standing naked between her thighs thrusting his cock inside her pussy.

"What are we going to do?" Katherine whispers to you. She is bending low to see through the window and as she does to can see right down her dress to her magnificent cleavage.

"I don't know," you say quietly back to her, trying to find someplace else to rest your eyes so you can recover your wits. You were turned on before listening to Katherine read Carla's diary account of what they got up to, but to see Carla and Mr. Kenny actually doing it has your cock almost tearing through your pants. Not to mention the effect Katherine's lovely figure bent over next to you is having.

"Should we try to stop them?" Kat asks.

"No," you say. "I don't want to make a scene, and if people find out, it would make Carla miserable. You know how cruel people get." You squeeze Kat's hand. "I mean, she got us together tonight, and it would be a pretty rotten way to pay her back."

Kat looks round. "What?" she says.

Your face colours at letting Carla's matchmaking slip, after you promised to keep it a secret. "Umm, I mean her party," you say. "I'm glad she put it together and that I ran into you. I don't want to mess up her life."

Kat sighs. "Yes," she says. "But she's running a horrible risk."

"Doesn't it look like she thinks the risk is worth it?" you say. "What would a friend do?"

Kat's eyes go back to the gap in the blinds. Her mouth circles into a little "O" again.

The two of you hunch over, pressed tightly together in the narrow viewing space, to see Carla and Mr. Kenny moving hard and fast against each other. Carla's head rolls from side to side, and her mouth is pursed in a little bow.

Katherine squeezes your hand. Her hand is warm and damp in yours, and you can feel the curve of her hip as you press closely side to side.

Suddenly Carla tenses and throws back her head, opening her mouth wide. You hear her moan through the windowpane. Mr. Kenny holds tight and stabs his final thrusts into her, his hips bucking and his low moan joining her higher one as his climax follows hers.

Katherine squeezes your hand. You turn your face to her, and she looks at you, her face shining in the faint exterior lights. You see her chin tremble, and you bend to kiss her. You can feel her body quiver. Excitement? Fear?

There is a faint noise from inside the room. The two of you startle and squeeze together to see what's going on.

Carla and Mr. Kenny are holding each other tenderly, Carla curled up on his lap as they sit in his desk chair.

"What would you want a friend to do?" you ask again.

"Keep my secret," Katherine whispers.

You see the beam of a flashlight sweeping across the courtyard some distance away. Is it school security? A chaperone? You don't want to be caught next to this window, or Carla and Mr. Kenny could get in trouble no matter what you say or do.