The next morning

The sounds of sexual moans woke John up in the morning. Apparently Amber and Zach are incapable of having sex without making an insane amount of noise and John just groaned. He tried to bury his head deeper into the pillow and reached out to pull Rachael closer but his arm landed on an empty bed.

He sat up in confusion and shook the sleepiness of his head. A part of him was disappointed. The mornings after fights and make up sex, Rachael and him would take extra time in bed talking. Never about anything important. Just whatever little things popped into their minds. He always felt like it brought them closer and helped heal any lingering hurt from whatever their argument was.

"Oh fuck, I'm cumming! I'm cumming!" Was heard thru the wall and John sighed in frustration. He didn't know why Amber insisted on humiliating him in this way but this was getting-

John's thoughts froze as his face went pale. That wasn't Amber's voice that screamed in passion. Almost mechanically, he got off the bed and headed to Zach and Amber's room. With every step he took, the icy pit in his stomach grew.

It didn't take long for his fears to be proven true. The door to Zach and Amber's room was wide open, obviously intentionally, to give a perfect view of their bed. The bed where Zach pounded his girlfriend from behind.

John stood just outside the door in shock. He couldn't look away from Rachael's face. Her eyes were closed in ecstasy as she rocked back to match each of Zach's thrusts. He felt his heart break anew as her moans increased and she threw her head back.

"Fuuuck so good!" Rachael moaned as the orgasm washed over her. She slowed her movements, seemingly to savor the feel of Zach's cock, and opened her eyes to see John in the doorway.

She blinked in confusion for a moment then a look of shame overtook her. "Oh God. I promised. Fuck. I promised." Rachael mumbled and clawed at the sheets, almost like she wanted to crawl away. Unfortunately, Zach's grip on her hips kept her in place and his thrusts quickly brought new moans to her lips.

John had no idea what was going on. Rachael fucking Zach after promising she wouldn't broke his heart but the look on her face right now told him she didn't want to. Either way, he needed to do something and Rachael's eyes told him she wanted this to stop.

He rushed into the room and pushed Zach off of Rachael. John hadn't truly expected much to happen because Zach had at least thirty pounds of muscle over him and held him back with one arm earlier in the hot tub. However, maybe it was adrenaline, or maybe a lucky angle that got some leverage, or maybe even the distraction from being balls deep in his girlfriend but Zach actually fell backwards.

Zach looked up at John in surprise as he lay there. Sadly for John's ego, it was more amusement mixed with shock, the kind of surprise you got from getting knocked over by a puppy. John pushed his feelings of inadequacy down and pulled Rachael off the bed. She continued to look ashamed and panted apologies into his ear.

"What the fuck do you think you're doing?" A voice angrily demanded from behind him and John turned to see Amber sitting on a chair in the corner of the room. The blonde looked at him with such contempt that he could almost overlook her naked body.

"You think a pencil dicked loser like you has the right to stop her from getting a deep dicking?" Amber asked with venom, no trace of that sickly sweetness she'd always used before. She stormed towards him and John pushed Rachael behind him. "You're fucking pathetic! You're not a man! You're nothing! You need to get out the way and let someone with a real cock give her what she needs!"

John didn't respond to Amber's taunts and that seemed to anger her further. As she launched a fresh volley of insults, John glanced at Zach. The other man just leaned back against the headboard with big smile. If he wasn't naked you could mistake him for someone who was enjoying a show. The only thing missing was a bowl of popcorn.

The whole thing had John beyond annoyed. With being insulted, cheated on, and apparently being used as entertainment he was just done. So after what had to be her tenth insult about the size of his dick, John looked Amber directly in the eyes. "Shut up you fucking bitch! We're leaving."

Amber's eyes went wide for a moment then her hatred intensified. She looked like she wanted to kill him and John thought she might actually physically attack him. He saw the muscles in her arm tense and prepared himself for how badly her nails would scratch and gouge his face.

"That's enough." Zach said and the anger seemed to drain out of Amber. "If they want to leave they're free to do that."

John relaxed a bit as Amber moved away with a scowl. Rachael even relaxed and stopped clinging to his back.

"It'll be about an hour before the boat can take you back to the mainland. Why don't you guys go pack and we'll meet you at the bar?"

He nodded at Zach and a small part of him wanted to believe that they were friends. The fact that Zach dick was still wet from Rachael's pussy made that impossible. However, he had a path to get their lives back to normal so he led Rachael out of the room and back to theirs.