The next day...

William wiped the fogged up bathroom mirror with his hand. He'd spent the last hour standing under a long, hot shower. Trying to wash it all away. To feel human again.

Now, with mirror clear, William stared at his reflection. Trying to recognise the man who stared back. And failing.

Who am I? he wondered. Who the fuck am I?

It all felt surreal. Like last night was a dream. William could have sworn it hadn't really happened. Except that it had. The proof of it was in William's eyes. They were vacant. Haunted.

Now, the memories of what happened last night came flooding back…

William was at the door of the bedroom. Which was slightly ajar. Watching them. Buffy and Xander. In bed.

He saw Xander take Buffy by the waist. Then, lifting her up a little, flung her sideways. To the middle of the bed. Then quickly settled in on top of her.

His wife let out a low sigh. Then, looking down, adjusted the body chain and silver panties with one hand. The billionaire had followed her gaze. Letting his eyes feast on the curves of her body. Then looked back up at her.

"That really is sexy," Xander said.

Now, looking up at him, Buffy smiled.

"Really?" she asked.

"Fuck yeah," the billionaire said.

Now, Xander dropped his head down. And, parting his lips, stuck out his tongue. Buffy, still smiling, greeted his tongue with hers.

"Mmmmm," she murmured. As their tongues began to tease.

The sight of it was a dagger blow to William's heart.

Jesus, William thought. What are you doung, luv?

To make matters worse, Xander placed his right hand on Buffy's left breast. And gave it a firm squeeze.

"Mmmmmmhmmmmm," Buffy murmured. Approvingly.

By now, their lips had joined. And remained so. When his wife placed her hand on the billionaire's cheek, Xander raised his head. But not before playfully tugging at Buffy's lower lip with his teeth.

"I'm so fucking wet," his wife whispered. Looking up at the billionaire. With dark, hooded eyes.

"I know," Xander said.

Oh shit, William thought.

The billionaire now dipped down. And began kissing his wife's neck.

"Oh," Buffy sighed. Shutting her eyes. "Oh fuck. Xan."

Xander now scooted lower. Now, keeping his eyes on Buffy, planted a kiss on the swell of her breasts.

"Ooooh," Buffy moaned. Arching her back. Her hand went to the back of Xander's head. Which she cupped.

A moment later, Xander had sat up. As had Buffy. Now, his wife reached behind her. To unhook her bra. A moment later, Buffy had shrugged it off. And tossed it aside. Baring her breasts to his gaze.

"That's a limited edition," Xander said. Giving her a look.

"You can afford it," Buffy said. Playfully. Laying back on the bed.

"Damn right," Xander said. Grinning.

Again, the billionaire returned to his wife's lips. Tongue first this time. Again, Buffy welcomed Xander's tongue into her mouth.

Suddenly, the billionaire broke the kiss. Xander bent down. And, blowing on Buffy's left nipple, quickly took it into his mouth. Now, the billionaire's right hand was between his wife's legs.

Jesus Christ Buffy, William thought. What are you doing? Why are you doing this?

When William blinked, he saw Xander had knelt between Buffy's legs. The billionaire now began pulling down his wife's panties. Slowly. Buffy assisted him by raising her hips. A moment later, he'd pulled off her panties and tossed them aside. Revealing her freshly shaved pink quim.

Stop, William wanted to cry. Even as Xander settled between Buffy's legs. Preparing to taste her.

William opened his mouth. But then he realised something. He'd been standing there for way too long. Watching them. He didn't know what to say. How to explain.

Then, William felt it. In his pants. He was painfully erect. Throbbing. Aching for relief.

Oh Christ, William thought. What the hell is wrong with me?

By now, the billionaire had positioned his mouth inches away from his wife's quim. And was licking his lips.

"May I?" Xander asked.

William remembered Buffy's words.

Xander was a perfect gentleman, she'd said.

Buffy nodded.

"Say it," the billionaire responded. Kissing her thigh.

"Taste me, Xan," his wife whispered. Nibbling on her lower lip.

Xander now lowered his head. And, keeping his eyes on Buffy, stuck out his tongue.

Now, maintaining eye contact with his wife, the billionaire gave her pussy a long, languid lick.

"Oooooooh," Buffy moaned. Staring down at Xander. "Oh fuck."

William would never forget it. The look on Buffy's face. William would never forget it. Not until the day he died.

Xander now ran his tongue upwards. All the way to Buffy's upper thigh. His wife responded by placing her hand on the billionaire's head. Now, clutching at his hair, Buffy attempted to push Xander's head back down. To her quim.

"Ah, ah, ah," Xander teased.

Chuckling when Buffy let out a plaintive whine.

"Oh please," Buffy murmured. "Xan. Please."

Now, Xander grinned. William saw the billionaire place his left hand on Buffy's belly. To hold her steady. It was then that William saw something glittering on Xander's hand.

No, William thought. It can't be.

But it was. Buffy's wedding ring. A symbol of her love and fidelity. To William. Was on Xander's pinky.

The billionaire now dipped down. And planted a long, wet kiss on his wife's pussy.

"Mmmmmm," Buffy murmured.

Suddenly, the billionaire raised his head.

"Why don't you come in, Will?" Xander asked.

What the fuck? William wondered.

Xander now turned his head. William found himself locking eyes with the billionaire. The man's eyes were dark as night. And soulless.

"Best seat in the house right here," Xander said. Patting the bedside. "You're not going to wanna miss what happens next. Trust me."

Xander is going to fuck Buffy, William thought. Again. But this time...

Buffy was looking at him, William knew. Watching him. But he didn't dare meet his wife's eyes. For fear of what he might see.

So, William did the only thing he could. He fled. Back to the dining room.