The first test

My tongue was in Nathan Sinclair's mouth. Who would have thought that after misbehaving with a billionaire who had fired hundreds of beauties, I would enter his private place instead of hell? His mouth, unlike his cold and disagreeable personality, was pleasantly warm. 
I was softly kissing him with some tongue action. I knew what I needed to do to pass the first test, but I was hesitant to take it to the next level. There was nothing romantic between us, and I wasn't allowed to touch his body. And to make matters worse, Nathan chose not to reciprocate at all. 
For a few seconds, I pushed my tongue further into his mouth before breaking the kiss. Nathan's reaction was exactly what I expected. 
He was disappointed. "Two," said Nathan, grimacing. "And I am being generous with this rating. I told you to try when your brain isn't focused elsewhere. It takes full attention to satisfy me." 
I was offended. A two? Had he been only kissing pornstars his entire life? "Look. My emotions are perfectly fine. I can't perform well under pressure and with so many restrictions." 
"What restrictions?" Nathan rubbed his lips vigorously, trying to remove my prints from them. Was he purposely trying to irk me? Or was he disgusted? "You had my permission to do whatever to my mouth. Nothing was stopping you from giving your best." 
"I am sorry, sir," I apologized, trying hard to hide my vexation. "The problem is that I have never shared a kiss where the other person doesn't move his lips at all. Also, touching is important to make the experience more enjoyable." 
Nathan's lips stretched into a flattered smile. "So it's about you wanting to touch me? I probably teased you too much by showing my bare body. I understand your urge to feel me, but you have failed the first test miserably." 
I lowered my head in embarrassment. "Pardon me. I have only been with one person my whole life. I don't have a lot of experience. Maybe I am not what you want." 
"Giving up already?" Nathan cupped my cheek. "Who said that I dislike inexperience? Thirst is sexier than practice, and I saw quite a bit of that in your eyes. You may not love me, but you are insanely attracted to me. Stop holding back and take what you desire." 
A wave of excitement went through me. Could Nathan hear my sinful desires, or were my expressions giving them away too easily? 
I had never gotten intimate without romantic affection. Then why was my body reacting so much to Nathan?  
"I am afraid to disappoint you again. Can we try again without a brutally honest rating?" I requested. 
"No!" Nathan shook his head. "I have a better idea. Let's do some training and retry after you feel confident enough to receive a review." 
"What do you mean?" I acted innocently. My lady parts were pulsating from that idea, but I didn't want to give him the impression of having a dirty mind. 
"You know very well what I mean by that." Nathan bit his lip. "Just to build more excitement, I will explain it a bit." He pretended to reach for my chest but brought his hands to my face again. "You wanted to touch me, and I almost did. However, the first lesson is about using your mouth to give someone the best time of their lives. Let me show you how it's done." 
I closed my eyes in anticipation of having my world rocked in the next few seconds. He softly blew on my mouth and brushed his lips against mine with a featherlike touch.  
The chemistry between our mouths was already on fire. I wondered whether there would be an explosion when our tongues finally met. The answer would be a yes because when his tongue entered my mouth, I felt all of that. 
Nathan's tongue entered my mouth with authority and explored my mouth with the same energy. I had never been a fan of too much tongue, but with him, it was different. His slippery thing was there to take and give, not ask. 
He was constantly attacking my mouth from both sides, letting me feel it from every angle. 
I don't know what I liked more. His hot mouth pressed so strongly against mine, or his tongue playing games of passion with my tongue?  
Even though we had been in love for a long time, John had never kissed me with this much passion.  
The kiss was so erotic that it would lead to sex in any situation, but Nathan stayed true to his word and didn't put his hands anywhere except my face. That man had some serious self-control because even I had the strong urge to touch him several times amid our makeout session.  
When he broke the kiss, my eyes remained closed, waiting and wishing for more action.  
Nathan snapped his fingers close to my face. "I know you are impressed, but we must stop now." 
"What?" I opened my eyes, completely clueless about what he said and my surroundings.  
Nathan laughed. "This is how you kiss. Do you understand now? Or do you need another lesson?" 
The sinfulness inside me wanted to say yes and ask for more, but I didn't want to come off as a slut.  
"Thank you for the lesson. You have taught me a lot today," I replied. Dammit! I felt slutty by only saying that.  
Nathan removed his hands from my face and grinned at me. "When will you be ready for another test, then? I was in charge of this kiss. I want to see what you can do." 
My cheeks flushed. "Uh, I am not as good as you, but I will try my best to satisfy you, sir." 
"When?" Nathan asked, trying to suppress a grin. He seemed equally turned on as me.  
"When do you want it?" I said without meeting his swoon-worthy gaze. 
"Would right now be too much to ask?" he replied. 
I lifted my eyes to find him looking at me with an unquenchable thirst. "No. I want to pass the first test as soon as possible." 
With confidence, I put my hands on Nathan's sharp jawline, trying my best to imitate his unapologetically sexy energy. 
I slid my tongue into his mouth and locked our lips in an intense kiss. I was there to impress and satisfy my body's new desire_ Nathan Sinclair. 
The sharp sound of shattered glass brought our kiss to an early expected end. We looked around to find Frank there, staring at us with an expression of horror and astonishment.