I have a girlfriend and she's so hot. One afternoon, I fetched her up from her school. Inside the taxi, I kissed her as if we are the only people there. Then, I unsipped her pants and feel her pussy and she just let it inside her. She kept on moaning so I became afraid that the driver would bring us to the police station to sue us of public scandal. But she wishpered that she wanted more. She even told me to fuck her when we got in their home. I just smile back. When we arrived, we immediately went to her room and did the fucking. She pulled her pants and panty down to her knees and I fucked her from behind. Then suddenly, the door opened as if we forgot to lock it out of excitement. It was her 15 year old sister. We both stunned and I really felt cold sweat out of my body. We both afraid that she would tell her mom about it. Her parents were so strict. But on my shocked, her sister told us that she would not tell about it to her mom and dad if I agree to fuck her too. I know my girlfriend did not like it but we have no choice so she went out and let me fuck her sister. OMG, her sister was so horny. She gave me a blow job that I never had before. She told me to lay on the bed and she sat on my cock. After that, she told me to do that again. And everytime she wants sex she would call me in my apartment. I know, my girlfriend hate her because of that but we have no choice since she promised to tell her mom if I refuse.
Please tell me what to do, guyz!!!!