I'm In Love With My Step-Brother (Markson Fanfic)

Part 8

Mark took control over my entire body. He was almost frightening. I've never seen this side to him before. I was scared...my heart was racing. I can't imagine what he'd do to me right now in this stall.

Mark's lips were pressed against mine. They tasted sweet, not the sugar kind of sweet, but a sweet that was only unique to him. A kiss that I've experienced so many times before is still special and poisonous to me. I didn't want it to stop. The vibrator in me stimulated my sexual feelings even more, it made the kiss even more intense and pleasurable.

His rough hand was still held tight around my neck. It hurt, but the pain melted into a feeling of pleasure. The shortness of breath only made me want him more. As I tried to gasp for air, Mark slipped in his tongue. He flicked it and intertwined it with mine. It was warm and moist...it tasted even better than his lips. Mark bit on my lip as he pulled away from me. He licked his lips, swallowing the saliva I placed over his mouth.

Mark sexily glared into my eyes. "I'm just getting started."

I remained silent, too scared to say anything. I stared right back at him, waiting for him to take his next move.

He took his hand off my throat and placed it on the wall next to my head, slightly towering over me. I took a deep breath in, taking in as much air as I could.

"Yeah, enjoy breathing now. You won't be able to in a couple minutes," Mark said with a smirk. That almost made me blush.

Mark stared hotly at me, using his one free hand to slowly unbutton his shirt. He bit his lower lip sexily, eyeing me up and down. I felt blood rush to my crotch. His sex appeal was so great that it was getting me hard. He was finally at his last button. Mark threw the shirt off his body onto the floor. His muscular and lean physique hovered over me. I couldn't help but stare down at his perfect body.

He used his hand to tilt my chin upwards, forcing me to make eye contact with him. "Jackson, my eyes are up here," Mark said with another charming smirk.

Mark kissed me quickly once again. He started planting a trail of kisses down my body, starting from my lips, to my neck, to the middle of my chest, to my bellybutton...then to the spot under my belt. He was on his knees, facing my now evident boner.

"Well aren't you excited," Mark said evilly. I was too embarrassed to say anything. I could only look down and watch whatever he was going to do to me next.

Mark undid my buckle, loosening the pant grip around my waist. He unzipped my pants, pulling them down to my ankles along with my underwear. My dick was out, bare in front of his face. This is the first time anyone has seen me so straight out. My face began to flush with color. Mark noticed it.

"There's nothing to be shy about. However, you should be a little scared. Prepare yourself for what I'm gonna do to you...I'm gonna do things that nobody has ever done for you before. Ah, right. I almost forgot about that little thing I put in you." Mark retrieved the vibrator dial from his pocket. He set it to max strength. I let out a loud moan and threw my head back against the wall. It was so strong, it was vibrating my insides and my dick. It felt so good...I could barely contain myself.

He took a firm hold at the top of my shaft, right below the tip. Mark used his tongue to moisten the head. The slight touch made me sharply inhale. He glided his slippery tongue over my slit, sending chills right up my spine. I bit the inside of my cheek so I wouldn't moan any louder. Mark placed his thumb over the gash, rubbing it in circles. My breath hitched. Mark kneeled lower and lifted my dick. He licked my shaft from base to top. He ran his tongue up and down, making it wet with his spit.

"How does it feel? Tell me..." Mark purred.

"It...feels...so...g-good..." I replied between moans and breaths.

"I'm gonna suck you so hard that you'll never forget how my mouth feels around your cock." His dirty talk made me twice as horny. Now I really wanted him. I wanted him in me...I wanted to be in him. I needed more of his touch.

Mark gripped my base with one hand, and placed another behind my ass. He slowly guided his mouth back towards the head. He devoured my shaft, gradually taking in my length. My eyes widened when my entire dick disappeared into his mouth and throat. Mark didn't seem to have trouble at all, which amazed me. After he had fit all of me into his body, he started to pulse back and forth. I shut my eyes tightly and threw my head back. The pleasure was increasingly stronger. Mark pumped his hand in rhythm with his mouth, making the pleasure multiply even more. I could feel his warm, wet tongue running over every inch of me, his soft lips rubbing against my skin. It was unbearable. Mark gradually picked up the pace, allowing me to hold in my screams no longer. I let out a loud series of moans that echoed off the bathroom walls. My breathing became heavily audible, my moans and grunts became more frequent and louder.

With the uncontrollable amount of euphoria in my body, my hips involuntarily thrusted into Mark's throat. For a split second, the pleasure increased as his narrow throat rubbed against my cock. I was afraid he would gag or choke, but again to my surprise, he did no such thing. He continued to suck me off like he had this entire time. Since he seemed fine, I decided to do some of the work for him. With small hip movements, I thrusted into his throat. I moaned loudly as I felt the walls of Mark's throat press against my shaft. As he got used to my force, I made my motions bigger. I thrusted harder and faster into him. I was literally fucking his mouth. I gripped two fistfuls of Mark's hair in my hands, pushing and pulling at his speed.

I moaned louder and louder as I got closer to climax. Mark knew that I was about to break, as I pulled on his hair harder and faster. Just as I was about to cum, he pushed himself off of me, immediately killing my orgasm. All of the feeling just went away...I was so close...and Mark didn't even let me fucking finish? What the fuck?

Mark just stood up and leaned against the bathroom door with his arms crossed. He had a sly grin on his face, like he purposely didn't let me climax.

"Mark, what the fuck was that?" I asked angrily. I was reaching a boiling point.

"Don't you remember what I said? If you don't follow the rules, you get punished. This right here was your punishment. When you don't listen to what I say, you don't get to climax. That's the harsh truth, Jackson," Mark replied with a smirk on his face.

"Dude...fuck you. That's not cool."

"Well, it wouldn't have happened if you didn't run of like that earlier."

I didn't respond after that, I just rolled my eyes and pulled up my pants. I was already upset and filled with steam. I just wanted to leave.

"Awww, Jackson. Don't be upset with me. I promise this will happen again another time. Maybe you can finish then, hehe," Mark teased playfully as he put his shirt back on. I wasn't really in the mood for his jokes anymore. "Oh, right. I forgot about the thing in your ass. I guess I tortured you enough." Mark pulled out the dial from his pocket and switched it off. I was relieved, but still upset. I reached into my pants and winced as I pulled out the vibrator from my ass. I handed it back to Mark. My jaw dropped when Mark licked the entire vibrator. Oh my god, how can he just lick that. What the hell. Mark winked at me, and I rolled my eyes.

With that, we walked out of the restroom and joined our family again to finish our dinner as if nothing happened.