My sister's offer

Unlike me, my sister didn't do well at college, nor in sports, nor even in cheerleading. She is petty but not a great dancer; after college, she got a job as a receptionist mainly because she looked good. I passed in the top 5 of my class and got a great job in my chosen career. Being 4 years older than my sister, I was settled in, having bought my own apartment albeit with a bank loan. Our mother had passed away from cancer prior to my sister going to college, and our father had passed away 3 years earlier from a heart attack. With insurance money paying our college fees and a little inheritance from our late mother, we were fairly well set, you could say. No debt hanging over our heads; my sister isn't the partying type either. I don't party, and personal relationships are nil. I did lose my virginity by paying a woman for sex a few times. So, on leaving college, my sister came to live with me. That was 2019, and of course, 2020 had the pandemic. This led to my sister's offer in late 2021, which started because of the upheavals after the pandemic. Companies closed or didn't reopen; in my case, nothing really changed. In my sister's case, her employer was bought out, and staff cuts were mentioned. Unemployment was high locally, so my sister made me the offer I couldn't refuse. Her offer was that she would sleep with me in return for me supporting her until things improved. Well, she still sleeps with me, and she has given me a son and daughter. Acts as my wife and wears our mother's rings. She got pregnant with our son in late 2022, and he arrived in 2023. Got pregnant again in July 2025, and our daughter arrived in April this year. We're quite happy with our arrangement; the only change is that my sister is also my PA now.