Me and my older sister, A, Are only a few years apart, but we look like twins. We have the same red hair, green eyes, and freckles on our face, and we’re about the same height. I married a blonde man with blue eyes, R, and she married a tall man with brown eyes and curly brown hair, B. Well, B and I have always flirted and played around when we all hang out. But one day, while my husband was at a golf meeting with his brother, and my sister was at work, it got too flirty and he fucked me over the piano in my sisters house. I know I should feel bad, because I love my sister and I love my husband, but the way B held my back to his front, his hand around my throat, it was so hot.

And what it makes is worse, A was recently told by her doctors that she’s infertile. She’s been begging me and begging me to carry a baby for her, and now B has agreed. I think he just wants to get me pregnant so we can fuck without worry. But, I love my husband, and R is so supportive and tells me that I can carry a baby for my sister if I want.

I just don’t know what to do.