My Sister Jane took my Car without asking.

I lived alone until my sister Jane 23 moved in with me in November last year. I'm Frank 28 (short for Franklin) single and have my home. I make good money and when Jane lost her job due to her employer closing down due the pandemic. She moved in with me, we're like chalk and cheese. She likes to party I don't, anyway everything was okay and then in March Jane borrowed my car without asking and had an accident with it. No other vehicle was involved, she failed to apply the handbrake on a small incline and the moved and hit a power pole. Not much damage really but the inconvenience of waiting it to be repaired annoyed me. Jane kept out my way for a couple of days, but she finally had to travel with me to our mother birthday in the repaired car. I had calmed down and was letting it pass as they say. We had to stay overnight on our way to our parents place and again on the way back. Cowed by her damaging my car Jane was unusually quiet, but I didn't mind the quiet. Finally at the motel we were stay at on our way to our parents, Jane offered to make amends. How I wasn't sure of what she meant at first she then made it clear she would let fuck her as a way of recompense. I was shocked at first and asked was she having a crack at for not being good at relationships. No, No she replied I really want to give you something special and the idea of sex had awoken by cock. Which responded by going hard, I decided to test her and accepted. I was still a little surprised when undressed and we had sex twice and slept the whole night in the same bed. She let me fuck her again in the morning and then we headed off to our parents. After 3 days with our parents we headed back home staying in the same motel and I wondered would she let fuck her again. But I wasn't going to ask, she didn't anything and after having dinner at the diner and returning our room. Jane said she was going to shower and told me to join her, which I did. On arriving back home, Jane started to sleep with me every night since and she hasn't dated anybody else since either. I asked her why she didn't date as she had fully repaid me for my car. She replied I really like our sex and am happy with things at the moment. I nodded and that how it is at the moment.