My Roommate is a Major Slut

I thought I'd jerk off quick, alone in bed, lights low, blankets pulled up. She must've heard me breathing hard, heard the bedsprings squeak. She cracked the door and saw me pumping my fist, right next to her empty pillow. My cock twitched at the sight of her watching, and before I could cover up, she was already crossing the room, peeling off her tank top. Big tits spilled free, soft and heavy. She climbed in without a word, straddled my hips, and pressed them together around my shaft. My roommate. The girl I'd fantasized about for weeks. Now her cleavage wrapped hot around me, warm skin squeezing tight, and I lost it, stroking between them until my balls drew up and I shot hard, thick ropes splashing across her chest. She bit her lip, rubbed the mess over her nipples, then licked her thumb. "Next time, ask," she said. "I'm down anytime."