I still wasn't sure if it was my sister or Jenny, so I very slowly turned the knob and opened the door a crack. It was Jenny, she was lying on the bed...legs spread and she was working a vibrator into her pussy. She wasn't shaved, and she had very fine blond pubic hair. Her pussy lips were pink and her clit looked like the end of my pinkie finger, it was big. She was covered with a thin layer of sweet which made her tanned skin glow in the light. She looked incredibly sexy. I was instantly hard. Then she asked me which I would never forget in my life. She said "You will get an unforgettable gift if you get better marks in math's. Do you want to?" I was stunned by that question. I said, "Yes". At that she said "not so easily. If you will score good marks in math's model exam then you will be able to get it and that will be me. But till that time you have to concentrate on your studies only. Ok. "I happily agreed to that and immediately said I will study hard and then I left. For two. ‘Shaye,’ he whispered. ‘What are you thinking about?’ Caught off guard by the seduction in his voice, I shuddered. ‘Well, I had my mind out of the gutter until you said something.’ He gave me a light chuckle. ‘I would apologize for my influence if I could, but I would be lying if I said that I didn’t mean to get your mind in the gutter.’ Sitting up a little bit, I leaned backward into Thomas’s arms and sighed heavily. ‘Honey…’ I mumbled. He kissed my cheek lightly and began to move his. Stripping off the condom, I spread his still warm cum on the dildo. I rolled off and moved so that I was kneeling by Tina's head."You made me cum honey." I whispered. "I am covered in my man cum. Lick it off for me. Suck the cum from my cock."Tina's eyes fluttered but they did not open as he turned his head toward my slippery cock. I pressed the tip to his lips and they parted, quickly sucking half of the length in."Do you like the taste of my man seed baby."Tina did not answer, he just licked.