I don't own South Park though I wish I did
About keys and fingers
It happened after a long sweaty training. Everyone else than Stan, Kyle and the school janitor was at home. High school was very tiring. Everyone had already packed, just Kyle didn't.
"Dude, why you not ready yet?" Stan asked . "I lost my keys dude! Come with me to the lost and found, my keys may be there!" Kyle rushed to the lost and found dark and warm room. Stan followed his friend.
Stan looked around the room "Oh look there's my jacket! I must have forgotten this like, ages ago. And my shorts over there!" Stan ran to the other side of the room." My biology book! I thought I had lost you forever!" Stan started to undress, to try his lost stuff on. "STAN!" Kyle shouted, Stan totally forgot about him. Kyle turned around, trying to avoid the view of Stan's athletic body.
"What Kyle? You've seen me this way over a thousand times when we were kids. Why can't you see me half-naked now? Am I too hot for you?"
"N-NO STAN!NO! I-I just feel uncomfortable! IT'S GAY DUDE!" Kyle tried to explain himself. Stan came closer, behind Kyle, almost leaning over him.
"So, standing next to a half-naked guy is gay, but getting an erection for it isn't? You can't hide it, dude." Whispered Stan in Kyle's ear. Then Kyle turned around to face Stan, but Stan quickly pressed Kyle against the wall and kissed him. Kyle responded eagerly. The soaking warm kiss lasted as long as the boys could breathe. Then, Stan kissed Kyle's neck and chest ,he kissed Kyle's stomach ,making his way into Kyle's pants. He set Kyle's erection free and gazed into Kyle's length as if it was a delicious meal. "Kyle, it's beautiful" Stan said, amazed. Before Kyle could answer, Stan had already put Kyle's penis in his mouth. Kyle started moaning while Stan slowly sucked Kyle's length from the base to the tip. Stan sucked Kyle's balls and started fingering his tight hole. Kyle was moaning even louder. Stan penetrated Kyle's prostate and Kyle came in his mouth.
"Kyle, you taste delicious" said Stan in a sexy voice. Kyle smirked, but it didn't last long. Stan broke it with a tasty kiss. Kyle's ass was still being fingered by three of Stan's fingers. They laid down. "Are you ready?" whispered Stan "the fourth finger is coming"
Stan didn't have Lube there, but he had a flask of shampoo. He poured some of it into Kyle's warm hole and rubbed some of it over his length .
"I'm ready" Kyle replied. And in the same moment, Stan was pressing the tip of "the fourth finger" inside Kyle's ass. Kyle moaned in pleasure and in pain, but mostly pain. Stan started thrusting deeper, faster and harder. Kyle moaned so loud and that turned Stan on. Kyle stared at Stan, he seemed so focused. In fact, Kyle had never seen Stan so focused, Stan was giving his best to love him. Kyle said, between loud moans "I love you". Stan kissed him passionately once again, now pushing even harder and faster. 'I love you too man" Stan replied, but it could be barely heard among Kyle's moans.
Stan left Kyle's tight hole, he was about to cum. Stan stood up an Kyle got on his knees. Kyle had his mouth open, tongue out while he kept stroking Stan and licking his "fourth finger's" head. Stan licked it all. Stan never forgot the sight of Kyle's white tongue. He massaged Kyle's sweet ass softly, Kyle couldn't stand up and as soon as he felt he could do it, he stood up. Kyle looked down.
"Oh look! My keys!" Kyle celebrated. They were under Stan's boxers and had white stains all over. Stan collected all his missing things and was getting ready to leave the room, Kyle dressed quickly. The boys finally left the room, holding hands and smiling.