Pass or fail?

I spread Nathan's arms on the bed, roughly locking our hands to match the fiery passion of our intertwined tongues. It was against the rules to touch any part of him, but there was no fun in being a good girl in the bedroom. Mischief and pleasure go hand in hand.  
My teacher had taught me well. I mimicked his every move and went a little overboard in enthusiasm. It would be shameful to fail twice, so I went in with full force. I was not kissing him. I was devouring his mouth. The initial plan was to pass the test of making his body scream for me, but soon, I found myself lost in the depths of his mouth, seeking bliss and much more.  
Nathan was enjoying it. I could feel him responding to my mouth's movements. That made the devil in me want to stretch the rules a bit more. Our bodies were pressed together. He could already feel my braless breasts on his torso, so why couldn't I feel him up a little? 
With our mouths still locked, I let go of his hands and slipped my hands underneath his shirt to feel his solid core, which I only had the chance to enjoy with my eyes before.  
Before I could fully act on my desire, Nathan grabbed my hand and threw me off him to the other side of the bed. "Don't get too excited!" He shook his finger at me like a cheeky disciplinarian. "You don't have permission to touch me." 
I sat up, realizing my mistake, and wiped his saliva off my lips. What had gotten into me? I had never lost control like that before. Perhaps being heartbroken was bringing out the desperate side of me. I was craving physical touch. It was not Nathan's raw sexuality enticing me in every way possible. 
"Sorry, I didn't mean to cross the line," I apologized, shyly straightening my clothes.  
"You should feel sorry," Nathan admonished. "Doctor Williams may have a point about how damaging hitting the gym can be for me." He comically shielded his body with his hands. "You almost ripped my clothes there." 
I stood up in a rush. He was desperate to prove my lust for him, but I wasn't going to accept defeat easily. "You're getting it all wrong. I was only eager to pass the test." 
"I see!" Nathan searched for his phone on the bed. "I still have one call to make." 
That man was impossible to please. To hell with a blank cheque! I was out of there. I grabbed my bra from the bed and was about to walk away when Nathan gripped my arm and stopped me. "Aren't you worried about the results?" he asked.  
I jerked my hand away from him. "Your complete disinterest in me speaks volumes. Why should I confirm my failure?" 
Nathan pushed me back, and I fell onto the bed. His face hovered over my face as he stared intently into my eyes. "You have a bad habit of assuming things." He softly touched my cheek and played with my hair. "If you would have asked patiently, I would have told you that you not only passed the test, you aced it." 
"What?" I gaped, pleasantly surprised. "Then why did you push me away?" 
"Because..." Nathan's brushed his lips against my cheek, slowly reaching my lips. He kissed me softly and slid the tip of his tongue into my mouth before stopping the action altogether. "I want to fill you with so much desire that when you finally get to touch me, you'll burst with passion. That turns me on. And turning me on is your goal." 
Nathan looked so handsome up close. Also, his words excited me more than I could do with a kiss. I had to fight the urge to grab his face and place a kiss on his gorgeous mouth right there and then. 
"I remember our agreement," I spoke coldly, placing a hand between our mouths. 
Instead of pushing my hand away, he pressed his soft and juicy lips against it, making my hand tingle. "Amelia, I am impressed by your performance in the first test. You had an excellent teacher, but you remembered everything well. I am so impressed that I want to tell you a secret." 
"What?" I asked, crossing my fingers that it had nothing to do with Mrs. Sinclair's affair. 
Nathan pressed his mouth into my ear and giggled. "I was only messing with the doctor. There is no hidden camera in his office. I wanted to see if he were guilty of anything." 
It was all a lie? I had made a complete fool of myself by exposing my chest because of that.  
"You should have not done that. He is not a pervert. Aren't you afraid of making someone mad who is responsible for your health?" 
"Afraid?" Nathan buried his face into the upper part of my chest. "He gets paid for my health. His lifestyle depends on how well I am each day. I am sure he is not stupid enough to kill his biggest source of income. He is leading a luxurious life where he barely has to work. What more can he ask for? I can test his anger as much as I want. I plan to place a camera in his office soon. That's what I was on the phone about. I don't trust that guy. He is having too much sex and always wears a guilty expression." 
Now I got it. Nathan could see the guilt in the doctor's eyes. The only reason he hadn't caught him yet was because he trusted his mother too much. I had to inform Mrs. Sinclair about Nathan's plan to place a camera in Williams' office. They needed to have their raw animal sex elsewhere from now on.  
"Forget about him. He is not worth your time," I said, caressing Nathan's hair. "I am so happy to have passed the first test. Now, I wish to learn about the second. What do I need to do next?" 
Nathan lifted his face with a sinister expression. "The next test is to finish what you left. Give me a bath, Amelia. This time, I want you in the tub with me. It will help you scrub my body better," he said.