Cheating On My Bestie With My Step Brother

“Keep sucking like a good whore, Lila. That’s it. Take it deeper," Steve gasped, pumping his hips forward as he fucked Lila's face. "You better keep your fucking mouth shut about this. Don't want mommy knowing what a whore you are for your step daddy, do we baby?" he drunkenly slurred, in heaven about being blowed by his step daughter, while his wife slept down the hall.

Steve’s gravelly voice cut through the cracked door, assaulting his son's ears. Caleb stood frozen in the hallway, heart slamming against his ribs.

Through the narrow gap in the ajar door he could see everything. Bile rose up his throat as he watched. His step sister, Lila, was on her knees before her bed, glasses on her head, blindfold around her eyes.

Her lips were stretched tight around Steve's thick cock, eagerly gagging on his length. Steve’s hand was buried in her dark hair, guiding her head as he thrust into her mouth with short, forceful strokes.

Lila’s hands clutched his thighs, opening wide for the dick fucking her throat. Saliva dripped from her chin onto her open blouse.

Caleb felt sick with rage. His fist slammed into the wall, leaving him with bleeding knuckles and broken skin, but it didn't matter. It was nothing to the pain in his chest. He felt like he was dying.

He only caught a glimpse of the woman he loved blowing his dad, but it was more than enough.

Caleb had been in love with Lila since the day she and her mom, Belle, moved in three years ago. Steve and Belle tied the knot not long after their respective divorces. Back then, Lila and Caleb were both fifteen and he was an idiot.

Still reeling from the hurt of his parents' divorce, Caleb wanted nothing to do with her.

That didn't save him though. Nothing could. Once he was breaking bread with her daily, the shy, nerdy girl with the glasses could but steal his sanity.

Before he knew it, he had given her something he never gave to anyone else. His heart.

Too afraid of the stigma of dating his step sister, he kept his mouth shut.

Loving her was wrong. Embarrassing. Not to mention forbidden. What would his friends and parents say?

Fucking moron. Apparently dad didn't mind the taboo one bit.

Seeing her on her knees for his own father broke something in him. Caleb felt like his whole world was crumbling. What would Belle say? God, this was so fucked up.

And what about his dad? Steve and Caleb had always been close, but now the sight of his father made him sick with rage. He hated him. Wanted to rip him limb from limb.

But that wasn't Caleb.

He didn’t burst in. He watched, anger building hotter with every degrading word Steve growled down at her.

After all, she wasn't exactly struggling. No one was forcing her. His innocent dove wasn't all that innocent after all.

Just like that, Caleb's perspective shifted.

"Slut," Caleb hissed under his breath, his chest heaving, but he just couldn't look away.

He waited too long, didn't he?

Had he told her how he felt sooner, taboo and stigma be damned, maybe she wouldn't be choking on his dad's cock right now.

They could have kept it a secret until college. He could have taken care of her needs quietly behind closed doors.

“Suck daddy's dick. That's it baby. Just like that," Steve sighed, captivated by the young mouth sucking his cock.

The words looped in Caleb’s head as he finally forced himself to walk away, cock half hard and traitorous despite his devastation. His hard on only left him feeling more distraught and humiliated as he slammed his bedroom door behind him.

"He fucking knows I love her. I know he does," Caleb snarled, pulling at his hair, his fighter hands itching to throw punches at Steve's face.

All the pent up rage finally got Caleb started on looking for an apartment. College was only another three months away.

Just as well. He needed to get the fuck out of here. The sooner the better.

How fucking long had his dad been fucking his woman? Did Steve take Lila's virginity when she turned eighteen? Is she in love with him?

None of them were fun thoughts, but the last question burned his brain cells into useless blobs. He couldn’t stop seeing her on her knees. His dad's cock disappearing in and out of her hot mouth.

If he got her the fuck out of here, took her far away, could he fuck some sense into her? Or was it too late for them?

A soft knock broke the spiral of jealousy, rage and betrayal attacking his soul.

“Caleb? Can I come in? I, I need to talk to you about something. Please. It's important," Lila’s voice sounded on the other side of the door, brittle and trembling.

Confused. Shocked. Remorseful.

How would she tell Caleb about Steve?

Caleb got up from his desk and yanked the door open. Then he grabbed her by the wrist and dragged her inside, kicking the door shut behind them.

The sound of it banging closed startled Lila. She gulped, fearing he somehow already knew.

Caleb turned on her, too wound up for restraint and sneered at her in disgust, “How long have you been my dad’s whore, Lila?”

Innocent, little Lila slapped Caleb clean across his face seconds after his words landed.

Whatever she thought he might say, it sure as shit wasn't that.

How dare he?

Lila’s eyes flashed with panic and anger, her mouth dropping open. Her eyes widened and she gasped, but she was quick to recover, despite trembling before him.

“You don't know what you're talking about!" she snapped right back, usually too petrified of Mr. Popular to rise to the occasion.

Not today though. He fucking crossed the line.

His gaze fell on her distracting heaving tits and he growled dangerously low. Mind going blank as his blood boiled, he grabbed both of her wrists. Then he backed her up against the wall and slammed pinned them above her head.

She dared not breathe, her mind running away with her as she wondered what he meant to do next.