Cheating Girlfriend gives me a Blowjob in my Office

I'm working late, and my office isn't surrounded by prying eyes, so I decide to invite my hot girlfriend over for a quickie. She's been flirting with me all day, and I can't resist her charms. As she steps into my office, she's dressed in her tight little dress, her long brunette hair cascading down her shoulders. I'm immediately hard, my cock throbbing with anticipation under my desk. She approaches me, her eyes filled with lust, and without a word, she drops to her knees, unzips my pants, and pulls out my big, thick cock. She looks up at me with those big, innocent eyes, her lips slightly parted, ready to take me in. I stroke her hair, encouraging her to start, and she does. She takes the head of my cock between her lips, swirling her tongue around the tip. I groan, feeling the heat build up in my groin. She starts to bob her head, taking more and more of my cock into her mouth, her lips stretching around my girth. I can feel her throat working as she takes me deeper, her nose pressing against my stomach. I grab her hair, guiding her head, as she gags slightly on my size, but she doesn't stop. She knows what she's doing, and she's a pro at it. I start to move my hips, fucking her mouth, my cock hitting the back of her throat. She's moaning around my cock, the vibrations making me even harder. I hold her head in place, my cock pounding her face, my balls slapping against her chin. I'm close, so close, but I want to fill her throat, I want to give her a taste of my cum. I pull out, stroking my cock, and she looks up at me, her mouth glistening with saliva, her eyes watering from the force of my fucking. I paint her face with my cum, my hot, sticky load covering her cheeks, her lips, her chin. She licks her lips, tasting me, and smiles up at me, her eyes filled with satisfaction. This is exactly what I needed after a long day at work.