I just got up asked her to come to knees and suck. She did the same. Pulled my pyjama pulled my underwear removed my cock and started sucking. Ohhh wo... what a feeling specially masturbating for 2 months this suck was really awesome, she was moving her hands on my cock and also taking my cock completely in and out. She was a real whore in sucking a cock. She is just best for sucking the cock. She just sucked it for 10 min and asked me to fuck her now.My cock was ready to fuck her now, first I. She stared at me the entire time as I went in and out of her hole. I spat twice on her face, covering her with more saliva. It was getting messy and humiliating for her, but this was just her 1st day. There was a lot in the bag waiting for her.As I neared orgasm, the pace of my thrust increased. I fucked her mouth like it was her cunt for another minute or so until I was on the verge of having one of the best orgasms of my life. I immediately pulled out and sprayed a thick rope of cum on her. “Sister what are you doing?” “I was hoping you could show me what sex is.” “Hun that’s what adults do. I know I let you give me a blowjob but this is a lot different.” This was hard to say because this was the first time I had seen my sister naked and her breast were amazing and my cock agreed with me being the hardest it had been for years. “But brother if you don’t show me I’ll have to find some guy who will.” This made me think a little. She was right. I’d rather it be me then some guy.. “Mr. J, are you OK?” Her voice broke my trance and I realized I had been staring at her breast. This time it was me that was blushing.“Oh, yeah, I am sorry.” I replied.“Oh it’s OK, I kind of like the attention.”All I could do was smile and lower my head. I could not believe that I had been so stupid. I decided that I had stayed too long and it was time to make an exit, before things went any further. As I walked towards the door, she caught my hand.“All I have left is the bed. Would you like to.