M4F - Dark, Impreg, Revenge on your little sister

Hey Ladies! Today I am looking to do a scene in which I play your boyfriend and we are taking revenge on your little sister. She tattled to your parents about us having sex and your conservative, christian parents grounded you for nearly the rest of your life and refused to let you see me anymore. To take revenge on your sister, you have decided to drug her, and have me impregnate her so that your parents will punish her and let off of you a little bit.

For this scene, I would like for the two of us to drug her and then have sex with each other over her unconscious body and at the same time, you tell me the naughty things you want me to do to her while she's passed out until ultimately I cum inside her, impregnating her. I have girls in mind for who you can plan and who your sister will be if you don't have your own suggestions. For ages, I am thinking about 18-19 for us and about 15 for the sister.

Let me know what your kinks are and if you have any other ideas you want to incorporate into my prompt and lets roleplay!