For William, it all happened at once now. Buffy opened her mouth wide for Xander. Meanwhile, he'd taken a firm grip of his cock. When his thumb swiped at his cockhead, he noticed a large amount of precum had leaked from it.

When Buffy dipped her head and took as much of Xander as she could in her mouth, William couldn't resist. He gave his cock an experimental pump. It nearly undid him.

"Oh shit," William whispered. He found himself panting heavily.

What the fuck is wrong with me? He wondered.

Again Buffy dipped her head. William waited. Only when she'd taken as much his wife had taken as much of the billionaire into her mouth as she could, did William give his cock another pump.

The second pump was even better than the first.

Jesus, William thought.

Now, Buffy bent her head even further. This time, letting her tongue run up the underside of Xander's shaft. Again, William pumped himself.

Soon, his wife had settled into a delectable cock sucking rhythm. Taking more of the billionaire into her mouth. While William, remaining on his haunches, pumped his dick.

"That's it Buff," Xander was saying. "Suck my fucking cock. So good, baby."

"Mmmmmhmmmm," Buffy murmured. Through her mouthful.

Part of William couldn't stop wondering. What are you doing mate? What would Buffy think if she saw you? What would Xander say?

But by now all conscious thought had fled William's mind. Morality. Shame. Guilt. Were just words. Only words.

Xander now bent down. And grabbing Buffy, hoisted her up. His wife now gasped. His wife's hands now went to his chest. For support. But the billionaire was keeping her aloft with one hand. The other had taken a firm grip of his cock. Which he'd positioned at her entrance.

His eyes went to Buffy's breasts. Which were smushed up against Xander's chest. Then to Xander's massive cock. Which was poised at Buffy's quim.

Jesus, William thought. Now, he too had halted his pumps.

Xander now said something to Buffy. Under his breath. His wife nodded her head. Then said something. Again, the billionaire made a rejoinder. Again she nodded. And said something.

What are they saying? William wondered.

Finally, they seemed to reach some sort of accord. With Xander, of course, getting the final word. Buffy now flicked a stray hair behind her ear. Then flexed her left leg outwards. Xander threw his hand under her leg. Now, taking himself in his hand again, he readjusted himself. Then slid her down onto his cock.

"Ooooooh," Buffy moaned. Wrapping her hands around Xander's neck. "Oh fuck!"

"Yeah," Xander growled. "Ride me, Buff."

Now, the billionaire began bouncing his wife on his cock. Xander was wearing a determined expression on his face. Clearly, he wanted to make this last. Meanwhile, Buffy's mouth was open wide. Neither of them seemed to be in any hurry. It's like they had all the time in the world.

William too began leisurely stroking his cock. Running his fingers up and down his shaft. Soon, his chest was covered with sweat.

Suddenly, Buffy gave Xander a wicked grin. William momentarily froze. It was an expression he'd never seen on his wife's face before. The billionaire smirked. Then took his wife's lips in a deep, passionate French kiss.

The sight of the billionaire and his wife snogging each other's brains out nearly broke the spell for William. Part of him knew what he was doing. What he'd become. But it was too late. He was too far gone. He needed to cum. More than anything. More than he needed to breathe.

Suddenly, Xander began fucking the shit out of Buffy.

William couldn't believe it. The pace of Xander's thrusts. The billionaire was pistoning himself in and out of his wife.

"Ah, ah, ah, ah, ah, ah, ah, ah,!" Buffy was moaning. Arching her back and throwing her head back. While Xander just kept fucking her. Like a godddamn machine.

William's pumps too grew more frantic. His breathing grew more erratic.

Suddenly, Buffy let out a shriek.

Buffy is cumming, William thought. Shuddering. My wife is cumming. For Xander.

But the billionaire wasn't. Xander now slowed down on his pumps. He seemed determined to savour it. Take his time.

Soon, Buffy was on the edge again. In record time.

"Ooooh," Buffy groaned. "Oh baby. I'm gonna cum again. I'm gonna cum again. Oh fuck."

Buffy's words spurred Xander on. The billionaire once again unfurled a series of savage thrusts inside his wife.

"Aaaaaaaaa," Buffy howled.

Xander responded by immediately again slowed down his thrusts.

William watched as the cycle began anew. With growing disbelief.

Xander was making Buffy cum. Again, and again, and again.

Keeping his wife in a semi-orgasmic state.

Now, William vaguely remembered something Buffy had talked to him about. A year ago. Orgasm stacking, she'd called it. Her yoga teacher had told her about it. Buffy had even brought home some books on it. William had been sceptical of the entire matter. All of it.

Xander suddenly set Buffy down on her feet. His wife's legs nearly gave out, William saw. Now, taking a deep breath, Xander flipped her around again. Into the doggystyle position. Against the railing. This time, he placed Buffy's right leg on the railing for support. Giving him maximum room to work with.

Now, taking another deep breath, and taking a firm hold of her hips, the billionaire began taking his wife. This time, even harder than before. Which William scarcely would believed possible.

Xander was ravaging Buffy. Wrecking her With short, sharp thrusts. His wife's breasts were jiggling violently. Soon, his wife was howling like a wounded animal.

"Fuck!" Buffy was squealing.

William grit his teeth. He continued to pump his cock. Harder and harder. His strokes grew longer and longer. His chest rose and fall. Faster and faster.

Xander now bunched up Buffy's hair in his hand. Now, having taken a firm hold of her golden locks, the billionaire sneered. Xander now pulled Buffy's hair back. None too gently.

Again, Buffy squealed. Now, William could see Buffy's face. Her eyes were shut. Her mouth was open wide. Her white upper teeth gleaming. Her expression was one of pained pleasure. The billionaire, meanwhile, was continuing to fuck his wife silly.

"Fuck," William whispered.

Xander now bunched up her hair again. Then, pulling back even tighter, redoubled his efforts.

"Aaaaaaaaaaa," Buffy was shrieking. "I'm cumming Xan. I'm cumming baby."

William could see it on Xander's face. This was it. The big one.

Xander is going to make Buffy cum again, William thought. My Buffy. My wife. My…..

Buffy's body trembled. Then, moments later, his wife let out an animalistic cry.

"Xander!" Buffy screamed. Her voice hit the highest octave it could. Then shattered like glass.

The billionaire's thrusts now grew wild and frantic. Until the force of them nearly had taken his wife off the ground. Xander pumped himself inside Buffy thrice. Then stayed there. A moment later, Xander roared. His entire body unwound. As he spilled himself inside Buffy.

Xander just came inside Buffy, William thought. Inside my Buffy. My wife.

Buffy, meanwhile, howled again. Xander's pleasure spurring her on to yet another orgasm.

It was too much for William. He was undone. Three frantic, desperate pumps later, he came. Harder than he ever had. With violent, weary sobs. Tears running down his face. It was as if his entire being was pouring out of him.

Afterwards, William just sat there. On his haunches. Slightly slumped over. Trying to collect himself. Finally, he managed to raise his head. And surveyed them through heavy eyes.

Xander and Buffy were still against the railing. Unmoving. His wife looked dazed. She was breathing heavily. And looking over her shoulder. At Xander. She looked incredulous. Amazed.

Buffy's perfect hair was now all mussed up. And falling in waves down her face. Making her look incredibly sexy.

"Oh fuck," Xander was whispering. Staring into Buffy's eyes. "Yeah Buff. Right inside you. Take it all baby. Fuck."

"Ooooh," Buffy was moaning. "Oh you feel so good baby. So big. Oh fuck."

Xander now leaned over. And kissed Buffy. It was then that reality began to set in for William. As he realised what had just happened.

He'd just watch Xander and Buffy fuck. The billionaire had fucked his wife. Right in front of him. Doggystyle first. Then, his wife had given Xander a blowjob and ridden his cock standing. Then, they'd done it doggystyle again.

Xander had made Buffy cum. At least five times. Then, the coup de grace.

The billionaire had nutted inside his wife. Xander had shot his sperm directly into Buffy's pussy. William had watched it all. And gotten off on it.

Jesus, William thought. What's wrong with me?

William knew he needed to get out of there. Pronto. He attempted to rise from his haunches, but found himself unable. His legs felt like lead. He was still breathing heavily.

"Fuck," William whispered. Trying desperately to rub some feeling into them.

Again, he tried to rise. Trying to pull his pants up. But this time, he only manage to stumble forward. William crashed into the carpet. Loudly.

William tried to scramble away. Then, he heard her voice. Say his name.

"Will," Buffy whispered.

Oh god, William thought. Oh god no. Please no.

William froze. And looked up. He locked eyes with Buffy.

His wife's eyes were wide as saucers. But there was something in them. Something William didn't understand. As if she were expecting this. Expecting him.

William didn't know what to say. How to explain.

"Buffy," William managed to say. Softly.

"Hey Will," Xander said. The billionaire was inside his wife. Still. And making no attempt to move. "Your wife and I were wondering when you'd show up. Couldn't resist, eh mate?"

Son of a bitch, William thought. He tried to rise yet again. But found himself unable to move from his prone position. He wished the Earth would open up and swallow him whole.

"I told you didn't I?" Xander said. He grinned now. Like a madman. "Nothing would happen that Buffy didn't want to. As you can see, she clearly wants to."

William felt lightheaded. He was having trouble catching his breath. His vision now blurred. His hands tingled.

"You ain't seen nothing yet," Xander said. His eyes were dark and flinty. "Trust me."