"Look at my muscles," she said.
Jasper, sitting at the computer, had heard someone coming down the stairs. When he looked up, his screen only showed an innocent Wikipedia page. It was Susan, a good-looking 18-year-old friend of his younger sister. He knew she was spending the night, but was surprised she had come down to the basement, a long way from his sister's room. He smiled when he saw she was wearing only boxers and a t-shirt.
As she walked towards him, she straightened a leg, pointed her toe, and did a little ballerina step. Jason enjoyed the show. She looked like a prancing horse. Remembering the video he was just watching, Jason imagined she was a mare in heat, trying to attract the attention of her stallion.
With each step, she pointed her leg toward him, which gave him a good look straight up her leg. For a split second, as she bent her knee and began lowering her leg, her boxer shorts billowed. Though Jason only saw darkness, he thought of the moist, soft skin at her crotch.
With her last step towards him, her foot almost reached his face. She slowly let her leg down, letting him get a good long stare up her shorts. He swallowed hard. His eyes were still on her crotch when she stood beside him.
"Whatcha doin'?" she asked in a little girl's voice.
He blinked, then looked up. She was looking at the bulge in his crotch. He smiled, then twisted his hip to move his erect penis to a more comfortable position.
Susan smiled, then turned herself sideways and stretched her leg back, pointing the toe, bulging the calf.
"I've got some real muscle, now," she said. "I've been walking every morning. It's really toning my legs."
Jason wanted his hand up her crotch so bad he could taste it! He reached out with both hands, wrapped his fingers around her thigh just below her shorts, and gave a gentle squeeze. Susan looked down and smiled. He squeezed again.
"I don't feel muscles. Flex them, again," Jason said, holding her thigh tightly in his grasp. He felt her strain her leg.