As I made my way through the ballroom, I felt my brother's stare following me. It had the weight of fingertips along my spine, an invisible presence I could never quite shake.

Claud knew he could trust me to play my role at this evening's charity fundraiser, which many of our top clients also attended. While he was the steely-eyed executive, I was his charming younger sister. As his assistant, I mostly stayed in the background during business meetings, but at social functions like these? I was in my element.

Tonight, I'd chosen an understated black dress. My dark curls were swept back from my face, and a strand of pearls graced my neck. My heels were precariously high. In a sea of gaudy cocktail dresses, I drew the most attention.

And the rich older men couldn't get enough of me. As the night went on and they drank more champagne, their laughter grew braying and their hands tended to wander. One septuagenarian who reeked of cigar smoke started out with his arm around my waist. It took less than ten minutes for him to give my ass a squeeze.

I didn't pull away from his touch. Even when his stare became hot and his mouth twisted into something cruel, I merely smiled.

Then I looked over my shoulder at my brother. Of course, he'd seen everything.

In just seconds, he was at my side. "Gwen, excuse me for interrupting, but there's someone I want you to meet." Claud's eyes held a challenge as he regarded Mr. Gropey. 

The older man quickly released me. Almost instantly, his expression changed from lascivious to sheepish. With a reverent tone, he greeted Claud.

My brother didn't bother to respond. Instead, he took my elbow and guided me away. In a voice only I could hear, he murmured, "No need to carry on like a whore."

Hemmed in by Claud's jealousy, I stayed close to him for the rest of the event. More than one guest commented on how much my brother and I resembled each other. We both had the same dark hair and eyes, inherited from our father. Our ruthlessness came from our mother.

During the ride home at well after one in the morning, Claud didn't speak, but I knew he was seething with frustration. Just last week, I'd told him he needed to get laid. He'd merely lifted an eyebrow and said, "You offering?"

When we arrived at the house Claud owned but which we shared, he kept an arm around me as if we were smitten newlyweds. It was only after we stepped inside, with the soft glow of the foyer around us, that he seized my wrists and backed me up against the wall.

"You little tease." His words were hard, but his eyes held an unmistakable playfulness. "You let that man put his filthy hands all over you, Gwen."

I glared up at him defiantly. "You rely on me to be accommodating," I pointed out. "That man is a potential client. Or I should say, he was a potential client. I doubt we'll get his business after you acted so rudely."

"Fuck him," Claud retorted. Releasing my wrists, he dropped his hands to my hips. "Did you enjoy him pawing at you?" He lifted my dress, his stare holding mine. 

Despite my effort to remain composed, I started breathing faster. Even now, shame clung to me like a residual film. But no amount of shame could dampen my lust when it was my brother who was touching me. 

Sliding a hand along my inner thigh, he gasped upon discovering I wore no panties. "Oh, you are a little slut, aren't you?" His laughter was low and mocking. "Who's gotten your cunt so wet?"

Though I turned my face from him, I didn't pull away. Instead, I leaned against the wall for support while Claud caressed my slick pussy. 

"I'm not the only one who needs to get laid," he taunted. "I can smell the need on you." While he used a fingertip to graze my clit, he said my name as a command.

Reluctantly, I looked back at him. "You said we wouldn't do this again." An involuntary moan escaped my lips. "You said..." I closed my eyes, trying to find a shred of my former resolve. "We need to stop."

"You don't want me to stop, do you?" Claud searched my face, finding the answer there. Still, I shook my head. 

He lowered his lips to my neck, giving my skin a nip. "Admit it, Gwen. You've been aching for my cock. You were hoping I'd fuck you tonight."

"Don't flatter yourself," I shot back.

Claud merely laughed before kissing my mouth. His tongue engaged in a sensual battle with mine, coaxing me into submission. All the while, his fingers moved with an expert familiarity, driving me closer to orgasm. My clit was now swollen and sensitive, almost too tender.

Seconds before I came, I clung to my brother, not trusting my legs to hold me upright. 

"I've got you," he whispered, his breath hot on my face.

I climaxed with a low scream. My hips rocked as my muscles tightened painfully. Clawing at my brother's suit coat, I opened my mouth wider in readiness to wail. Another spasm kept me quiet, and when it subsided, Claud shed his coat and then pulled me to the floor. 

I let him ease me onto my back, with my dress bunched around my waist. Kneeling between my stockinged legs, he rushed to free his cock. Oh, yes, he needed this as much as I did!

"Sometimes," I said in a shaky voice, "I think you only want this because it's wrong."

He froze for a moment, gazing down at me. "I want this because I love you, Gwen."

I opened myself, my throbbing cunt offered without hesitation. And my brother took it, sliding in gently at first. My eyes rolled from the sheer pleasure of being his. 

"You're dying for every inch, aren't you?" he demanded.

I could only nod, but that was enough to encourage him to pin my wrists to the floor. Settling his weight upon me, he gave in to the primal urge to thrust hard and fast. 

"I know this is just the punishment you wanted for teasing that man!" 

I stared up at my brother, astonished by the sight of his expression contorting with sheer arousal. My helpless cries merely spurred him on.

"You're mine," he said while pumping away between my thighs. "Only mine."

"Claud!" My lips trembled from the effort to hold back a sob. I was lost, I knew. Lost to my brother and his fierce longing, which mirrored my own. His was the only love I could bear.

His grunts bordered on feral as he drove himself into me again and again. "I'm gonna come inside you, Gwen!"

It was filthy, the way he made a promise sound like a threat. And even filthier? The way that warning instantly made me orgasm around his cock.

"Fuck!" he groaned. "You want it, don't you? You want me to fill that sweet pussy!"

"Yes!" I choked out through a violent shudder. 

"You can do better than that." He slowed his thrusts, and I sensed the danger of him withdrawing altogether.

"I want..." I squeezed my eyes shut as my body tried to buck against his. "I want my brother's cum."

I knew it excited him, forcing me to confess my most craven desire. 

"I'm gonna give you what you want, Sis! I'll make you feel so... fucking... dirty." His thrusts were now wilder, harder, as if he meant to split me apart.

And then he came, roaring from the strength of his own release. The feel of his seed spurting inside me, coating my inner walls, provoked another wave of aftershocks from my core. He grunted and whimpered while my muscles drained him dry.

Afterward, Claud didn't pull out. He always preferred to stay buried within me, and I loved the way he remained hard for a good while, slow to soften. 

Resting his body on mine, he showered kisses upon my face and hair. No longer was he dominant and forceful; he showed only gratitude for what I'd given him.

"I'll run you a hot bath," he said gently. "And tonight, you'll sleep in my bed."

Finally, he withdrew and put away his cock. I let him gather me into his arms, and as he effortlessly carried me up the stairs, I nuzzled his neck with my lips. While inhaling his scent, I could feel his semen leaking out of my well-fucked pussy.

Later, Claud and I would lie together in the darkness of his room. I'd feel his arms around me like a safe, warm cocoon. The thought filled me with a sort of giddy relief, as did the realization that I could now resume my favorite role.

The role of my brother's lover.