a bit of excitement

Matt's first instinct was to try and cover his raging erection, but before his arm could twitch in that direction, Lily sat up, her legs spreading wider as she looked him up and down. "Wow," she almost whispered. "You look even bigger than..." She broke off, her face flaming red.

"Bigger than who," Matt challenged, taking another step forward, another step closer to her bed. "Bigger than dad?"

Lily's mouth dropped open in shock. "What do you mean... I mean, why would you say..."

Matt rolled his eyes. "Don't give me that shit," he growled, his eyes looking down to her pussy. "Especially when you're sitting there with pussy full of dad's sperm."

Impossiibly Lily blushed brighter, her hand covering the slick opening of her pussy. "Don't hide it," Matt said, taking another step closer, his knees hitting the foot of her bed. "I'm enjoying the view."

Lily looked up, dragging her eyes from Matt's throbbing cock. "You like looking at your sister?" she teased, her hand moving - not away from her pussy, but to it again, slippping between her labia as she stroked herself.

"Yeah, I do," Matt breathed, reaching down with one hand, his fingers joining hers on her shaven pussy. "I like touching as well."

Lily moved her fingers away, letting her brother stroke her, now both arms behind her, supporting her as she lay there, watching and feeling. "Are you going to stroke yourself off, or put that thing to good use?" she asked, arching her eyebrows.