"Draw your last pathetic card so I can end this, Yugi." Kaiba smirked, folding her arms to subtly lift her boobs. She paused for a moment, trying to control herself, before giving in and adding, "Your skills are so below mine, I'll literally bet my ass you're done for." She looked him dead in the eye, waiting for his confidence to waver. Instead she saw his expression darken and an almost cruel grin spread across his face as he drew from his deck with a theatrical flourish. "My grandpa's deck has no pathetic cards, Kaiba, but it does contain.." He paused for a moment, relishing her petrified expression as he lifted the card for her to see. "The unstoppable EXODIA!"
"Her eyes widened, and she gasped as she exclaimed, "That's impossible! No one's ever been able to draw all five pieces, not once in the 2 years that's been a niche unplayed strategy!" She looked at him with a mixture of shock and arousal, almost disgusted with herself that she was now eyeing up a guy who used such a crappy deckbuild. She watched him stroll towards her cockily, and stood stunned as he gently tilted her chin up until she met his eyes.
"Now, what was that bet you made? I believe it was something about your ass." She bit her lip, unable to resist the allure of darkness as her hand mindlessly strayed to his uncomfortably tight leather pants. She could feel herself growing hotter as she gently ran her hand over his growing bulge. Her eyes rolled back just a little, a breathy sigh escaping her lips before she finally regained some of her composure. "Wait, there's no way that counts! You got lucky and pulled one of the shittiest, most inconsistent win conditions in the game! You really think I'm gonna—" She trailed off as he put a finger to her soft lips. "A deal's a deal, Kaiba. Still, I suppose it would be unsporting of me to start with that. I'll give you a moment to process your defeat, and prepare things." His hand moved from her lips to the top of her head, and he began to firmly push downward. Her nostrils flared as she sank to her knees, her eyes level with the now massive tent in his pants. "This won't happen again, Yugi," she grumbled as she brought her hands up to his belt. She bit her lip again as she slowly undid his belt and opened his fly. "I bet it's not even that big," she said tauntingly, immediately before his one-eyed white dragon slapped her in the face. She couldn't stop herself from letting out a low, sensual moan, but she followed snidely, "Well, I've certainly seen bigger. I'll be generous and call it an okay co—" She was cut off as he placed a hand on the back of her head and inserted his length abruptly into her mouth. She glared up at him, but obligingly began to suck, swirling her tongue around the head and gently taking it deeper.
"Yugi chuckled, destined rivals meeting eyes as he said, "Ha, this is the first thing I've seen you do well enough to possibly warrant that ego." He smirked at her and gave another push, forcing the head of his cock past her uvula. She gave another moan as he hilted himself in her mouth and she found herself finally willing to keep eye contact. She pushed her hands against his thighs and forced herself back off his cock. "This wasn't part of the deal, Yugi, so there's no way in hell I'm letting you be in charge." She gently licked at the head as her hand caressed his balls, far more softly than one would expect from her. She ran her tongue across his glans before once again taking his dick in her mouth. This time, without Yugi's unceremonious input, she took her time to delicately enjoy every inch of it. Yugi let out a groan as he savored the moment, before pulling out and tauntingly slapping his shaft across her now-messy face. Kaiba looked at him in shock. "Hey, what the hell, twerp, I was just starting!"
"I think that's generous enough. Now to claim the true prize of our game." Kaiba felt her entrance throbbing, more desperate and needy than she could ever admit, even with her mind as lost to lust as it was. She begrudgingly stood, and almost immediately Yugi's hand was on her rear, gripping and squeezing his new conquest. He played with her clothed ass for a moment, his face just an inch from hers, their hot breath mixing between them as Yugi teased, "This must be half the value of KaibaCorp on it's own." He lifted her skirt and began to tug down at her pantyhose before smirking at her once again. "Are you sure you weren't planning to lose? The lack of panties and this make it look like you came prepared." She flushed as he pushed in slightly on her limited edition Blue-Eyes White Dragon anal plug. "Don't get a big head, Yugi. If you must know, this is what I always wear, it's just what I find comfortable."
"Comfortable, really? And I'm sure you'll be quite comfortable bending over to have your loss pounded into you as you enjoy the taste of defeat in your mouth." Yugi spun her around and pushed her upper torso forward, forcing her to rest her arms on her field and knocking her precious Blue-Eyes' to the side. "Hey, watch it! There are only three of those in existence, and if you damage them I'll make sure it's taken out on your ass!" As Yugi pulled out her plug and enjoyed the look of her lightly gaped anus as she growled. She arched her back slightly more, eager to be filled again. "One of the richest women in the world and you can't afford card sleeves, Kaiba, really? Well then, I'll be going in unsleeved as well."
"He pressed against her entrance, slightly harder each second until finally the head popped through her taut ring. "That's pathetic, Yugi. Is that really all you've go—ahhhHHH!" Her taunts quickly turned to uncontrollable moans as he roughly thrust himself all the way inside her and began to pound away at her plump, bouncy ass. He gave a slap, then another, reaming her open as he covered her butt in bright red handprints. She bobbed forward and back, her breasts swinging like a pendulum. "Is that as hard as you can go, Yugi? Most valuable ass on the planet and this is the best you can use it, how disappointing." Despite her trash talk, Kaiba was actually having a good time. She felt her mind filling with haze as she heard Yugi's distant, powerful voice. "All that talk about me being 'pathetic', and yet here you are reduced to nothing but a needy slut, not even coherent enough to keep begging for my Millenium Rod. Anything to say for yourself?" Kaiba tried to muster some indignance, some smart retort, but nothing came. All she could focus on was the hot length of flesh hitting every nerve in her lower torso. As she began to feel waves of pleasure wash over her like a tsunami of bliss, she finally managed a high-pitched, desperate and defeated cry of "Yu–Yug–Yugi—YugiohhhHHHH"
The final scream left her lips just as Yugi let loose a violent, primal roar, thrusting his throbbing dick deep inside her ass and letting loose a torrential tribute of cum. He held her by the waist as he let the final burst stream of destruction loose, cum blasting out around his cock as he overfilled her hole. Her legs shook and went limp beneath her, and as she scrambled to stay upright her cards became even more jumbled. "I'd say that's the last of your life points, Kaiba." Yugi slowly pulled himself from her now-stretched hole and moved to help her into a sitting position. She let out a contented sigh as she silently thanked herself for only betting her ass, shuddering at the thought of trying to teach a little brat how to duel. After reveling in the afterglow for what felt like hours, she looked up at the now seemingly shorter and less-muscular Yugi. "Get the hell out of my building, pipsqueak."