Lily pt 2

Later that night, Sam was in his room when her heard loud grunting noises coming from his sister’s room next door. He walked down the hall to see his sister’s door partly open. Through the opening, he could see his sister lying on her bed, totally naked, staring at a computer screen. On the screen was a huge muscular behemoth of a man ramming his cock into a petite, lithe woman. 

Lily’s muscles rippled and her arms bulged thick and veiny as she stroked her naked pussy. It was unshaved and unruly, and the pubic hair traveled partly up her washboard abs. Those abs were so defined that Sam could see small ripples undulating and blue veins pumping beneath the skin. Her fist-sized obliques bulged and her serratis rippled, glistening with sweat.

“Ungh, fuck!” Lily groaned. “Bang that bitch hard, you muscle fucking BULL!!”

Sam just stood there in shock as his dick got hard. He looked down at his tented sweatpants and became embarrassed. “Lily, what the fuck!” he yelled suddenly.

Lily glanced over her shoulder at the doorway and saw Sam standing there, but she didn’t stop stroking her sopping wet cunt. “Ungh,” she groaned, “What?”

Sam gestured wildly, “Right in front of me? With the door open, really?”

Lilly just laughed, still stroking. Then she looked at the screen, where the muscled monster of a man had lifted up the girl and was pounding her standing up. “Ungh!” Lilly groaned, stroking herself faster. “I can’t help it, bro. I just get so horny!” She moaned as her cunt suddenly belched a stream of juices.

Sam shook his head in disbelief. His face felt flushed, and his hard on returned with a vengeance. Saying nothing more, he fled to the bathroom, turned on the shower, and furiously masturbated until he came. He was embarrassed and humiliated, being turned on by his own sister like that. But those huge, thick muscles, vibrating with energy and power… he didn’t realize how sexy that could be.

The next morning, at breakfast, Lily was consuming a plate full of eggs, bacon, and sausage when Sam sat down. She was wearing a tight sports bra that showed off her thick shoulders, flaring traps, and built abs. She looked over at Sam, smiled, and said, “Did you enjoy the show last night?”

Sam’s face flushed, then he forced a sour expression and said, “No! Gross, Lily! You’re my sister!”

Lily chuckled, and shoved a fork full of protein into her mouth. “Sure, Bro. Then how come you took a shower for twenty minutes right after?”

Sam’s face flushed deeper. 

“It’s ok, bro,” Lily said conspiratorially. “In fact, I think it’s cool.”

“Cool?” Sam said incredulously. “What the fuck?” 

Lily shrugged, sending a cascade of rippling strations down her neck, traps, and shoulders. “I like it.”

“You like what?” Sam said, almost breathless.

“I like showing off!” she said. She looked him square in the eyes. Then she puffed up her chest and flexed her pecs. They bulged with rippling sinew, threatening to pop the stitches on her sports bra. 

“I like turning you on with my muscles!” she said in her best come fuck me voice.

Sam’s eyes went wide. His dick immediately got hard, and he covered it with his hands.

“Don’t worry,” Lily said with a smirk. “It can be our little secret.”

Sam blinked. “Uh… okay.”

“Here,” she said. “How about a little inspiration?” Then she did a double bicep flex. Her biceps exploded with beef. Thick veins engorged as horseshoe-shaped triceps bulged downward and bulbous masses of biceps expanded upward. Thick blue veins crawled up the top of each muscular mound. Sam whimpered as his cock bucked, and Lily chuckled.

“Go ahead, bro,” Lily whispered. “Go lock yourself in the bathroom and beat that cock!” 

Sam got up and practically ran upstairs while Lily just laughed. She liked where this was heading.