Finally home(Woke up just in time)

Jack walks out into the parking lot to see Beth waiting for him in her car. "What took you so long?" she asked as he got into the passenger seat.

"I stayed and got help from Ms. Ambers for history, and then i slipped on the wet floor."

"Ah, that explains the shirt" she said as she pulls out of the school parking lot.

When they arrive home Beth says she's going to take a shower before dinner. Jack puts his stuff in his room and starts setting the table.

After dinner Jack heads upstairs to the bathroom to take a shower, he closes the door and turns on the faucet. As he's getting undressed he sees Beth's panties is the hamper. They're blue lace boy shorts. He could only imagine how sexy they would look on Beth. He picks them up out of the hamper and brings them close to his nose and takes a big whiff. Damn Beth's pussy smells so good, he thought to himself as he started rubbing his growing cock.

Just then there's a quick knock on the bathroom door as it opens quickly and Beth walks in,"I forgot my pho--" she stops mid-sentence, stunned for a split second seeing her naked brother with her used panties on his face and his cock in his hand. "Oh damn I'm sorry," she said rather calmly. She looked at Jacks naked body for second and then quickly turned around and shut the door.

Jack didn't know how to react. She wasn't mad? She wasn't grossed out? Should he finish before her showered?

Jack locked the door this time and threw Beth's panties back in the hamper, he thought it'd be too weird to cum in them right after she saw them on his face.

After his shower he walked back to his room past Beth's closed bedroom door. He put on boxers and a white shirt and lay on his bed thinking about how he was going to explain what just happened to Beth.

There's a knock at the door.