Seducing my sister's boyfriend

I got used to my small apartment over the few months that I have lived here now. Still, I was wondering when my sister placed Nate exactly here, although I used to struggle for place already. 

Nate is about 6 feet tall, has hair in a rather red color and a really cute smile. 'Hi, I'm Nate.', was all he said to me the moment we encountered. 'I hope it's fine for you to let him stay here for the weekend. I know you don't have any other plans, right?' She knew me and she got me. I didn't really know what to do the weekend and spending it with such a hot guy was definitely not a problem for me. The only problem was that Nate was her boyfriend and being hot for my sister's guy felt like a betrayal. 

Nate did not really speak much. He told me about his hobby for cross-fit, which made me kinda hot during dinner. On the other hand, I told him about the city here and we shared a few anecdotes about my sister. Lateron, he laid down on the couch while I went sleeping in my normal bed. 

The next morning when I went into the living room, Nate was already awake. He was currently dressing and the moment I came in, only wore a pair of blue boxershorts. And I could do was stare at his bulge and his soft skin, as well as his muscles. I felt my dick harden, so I quickly went to the kitchen, without even saying 'Good Morning'.

I waited there in the kitchen for Nate to finish and my thoughts couldn't come away from him. When he finally came into the kitchen, I stood there with a complete hard-on someone couldn't miss. To divide attention, I started to prevent making breakfast, when Nate approached. He wore his normal clothes now, too bad, but still I could see that his bulge had not disappeared yet. Additionally, he was smirking. 

'So, you're hot for your sister's bf?', he whispered into my ear, with his smooth and sleepy voice and it drove me crazy in that moment. I couldn't answer, the situation is too weird. 

Then I feel his hand on my arm, turn around and see his face, the shadow of a beard on his chin, his light green eyes and his red, tousled and curly hair. He leans forward and his lips brush mine. 

But now I can't hold it back and grab the hem of his blue shirt, let my hand run over the smooth skin over his abs. Our lips part and I let out a gasp. His hands now run over my neck, giving me goosebumps. Nate pulls his shirt over his head, finally giving me the hot view I had a few minutes ago. My lips let go of his and instead start kissing his chest, licking over the few hairs he got there, almost invisible though. 

I notice that I'm sitting on the counter now, Nate removing my shirt, our bodies so close together. Then he drags me to his bed, my sofa and lies down, so that I can open his belt and jeans. The bulge in his boxer is unbelievable now. Then, Nate starts undressing me, every touch of him giving me shivers. I sigh when he pulls down my white boxers and releases my immense hard-on, just to start sucking it. 

His tongue feels amazing and I start moaning in a way I never did before. I want more of him and I want it now. I let go of him and massage his cock through his boxers, him letting out sounds so hot they make me crazy. 'Fuck. Suck my dick.', he says. There is hardly another thing I would like to do now. 

His cock feels soft, but still hard on the inside and after a few seconds I can sense drops of Nate's precum on my lips. 'Oh, Fuck. Don't stop.', he moans, gripping my hair. My hands run down his hairy legs, turning me on more and more. Then Nate pushes me away and starts to fuck my ass. 

His cock inside me is pleasuring me so much, with every pounding I moan more and more, feeling the urge to come every second. 'Fuck. Slow down.' I even scream now. I'm on my back, my legs on Nate's sides and I study his facial expressions, which also make me almost come. I can sense how much he is pleasured by only his face. His cute and hot face. 

'Oh, fuck.' Nate starts to moan louder and louder. 'Fuck, man. FUCK!' His pounding also gets harder and I enjoy it even more. 'Fuck!', we both moan at the same time. I started jerking my cock as well, the sight of Nate has me do it. 

'Oh, fuck, man. Fuck, I'm gonna cum.', Nate yells and fucks me harder, so that the sofa under us is making sounds as well. 'Fuuuck!' He moans and moans louder and louder, his muscles tense and bis face is showing that he is cumming. 'Fuck, Nate. Fuck!' I moan as well and feel that I cannot last long anymore either. With a sound of immense pleasure, I finally climax, shooting loads after loads on my abs and chest. 

'Oh, fuck. Man.' Nate lets go of me and strokes my abs. 'Nice shot', he says by picking up my cum with his finger. 'Glad I can stay here another night.'