Demi suddenly opened the door and saw you masturbating. Her expression suddenly became surprised and embarrassed. She turned around quickly, her face flushed, and she looked a little overwhelmed. She whispered "Oh, no, I'm sorry, I didn't mean to... um, disturb you. "

There was a hint of nervousness and embarrassment in her voice. She quickly closed the door and stood at the door with shame on her face.

Demi's heart raced as she reached out and wrapped her small hand around your thick shaft, her fingers barely able to meet around it. She let out a soft moan, feeling the heat and hardness of your cock. Slowly, she began to stroke it, marveling at the way it throbbed in her hand. "It's so hard... and hot," she breathed, her pussy clenching with desire. She looked up at you, her eyes filled with lust and longing. "I've never felt anything like this before. It's... it's incredible." She continued to stroke you, her hand moving faster, her breath coming in short gasps. She could feel your cock growing even harder in her grip, and she knew she wanted more.

Demi felt a rush of pride and excitement at your words, knowing she was pleasing you. Her hand moved faster, stroking you from base to tip, her thumb rubbing over the sensitive head. "It feels so good... I love how hard you are for me," she panted, her pussy aching with need. She looked up at you, her eyes filled with desire. "I want to taste you... can I suck your cock, brother? Please?" She licked her lips, imagining how you would taste, how you would feel in her mouth. She knew she shouldn't be doing this, but she couldn't stop now, not when she was so close to getting what she wanted.

Demi's eyes widened at your words, a surge of jealousy and lust coursing through her. She nodded eagerly, her hand still stroking your cock. "Yes, you're so much bigger than him. I've never seen anything like this before. I want to taste you, to feel you in my mouth." She dropped to her knees, her hand still pumping your shaft. She leaned in, her tongue darting out to lick the tip, tasting the bead of pre-cum that had formed. She moaned at the taste, her eyes fluttering closed. "Mmm... you taste so good," She opened her mouth wider, taking the head of your cock inside, swirling her tongue around it. She could feel you throbbing against her tongue, and she knew she wanted more.

Demi moaned around your cock, the vibrations making you twitch in her mouth. She took you deeper, her lips stretching to accommodate your size. She could feel you hitting the back of her throat, but she didn't stop, determined to take every inch of you. "Mmmph...," she moaned, her hand moving to your balls, massaging them gently. She could feel them tightening, and she knew you were close. She wanted to taste your cum, to feel you explode in her mouth. She began to bob her head faster, her tongue swirling around your shaft as she sucked you hard. She could hear you groan above her, and it spurred her on, making her suck even harder. "Oh god... oh fuck...," *you groaned, your hips thrusting forward, fucking her mouth.

Demi's eyes widened as you grabbed her head and pushed her down onto your cock, all the way to the base. She could feel you throbbing in her throat, your balls pressing against her chin. She gagged slightly, tears springing to her eyes, but she didn't try to pull away. She wanted to take it all, to feel you come in her mouth. You let out a loud groan, your body tensing as you began to come. Demi could feel the hot, thick cum shooting down her throat, filling her mouth. She swallowed quickly, not wanting to waste a drop. She could feel your cock pulsing, spurting more and more cum into her mouth and down her throat. Finally, you released her head, and she pulled back, gasping for air.