My sister Jane took my car without asking. Update

Jane took my car and had a minor accident in it. She ended up up sleeping with me to make up for her actions. She continues to sleep me and met up with a old school friend Emma 23 and started seeing her a lot. Emma single one child a girl Alice 2, the father of Alice cleared out as soon as he heard Emma was pregnant and hasn't tried to contact Emma since. Jane and Emma became as they say thick as thieves and Jane asked could Emma move in with us. As I'm like putty in Jane's hands and do whatever she wants, so I agreed and Emma moved in late July. Shortly after Jane and Emma joined me in my bed and after fucking both of them that night, they both sleep with me every night since. Last week Emma was confirmed as pregnant, a shock at first to me. But also a source of pride also, the greater shock came last Monday with Jane also now pregnant to me. I was still getting use to Emma being pregnant. Neither of them are worried in anyway and plan to get all test done in the coming months. Jane told me I should marry Emma and adopt Alice, who has started calling daddy. I'm okay with that and have asked Emma and she has accept and the wedding is next week (were eloping) with just Jane and Alice coming with us. A bit of a rush, but why wait and we will tell our parents after the wedding and Jane is going to our parents she met a guy had sex and is now pregnant no idea who or where he is now. This won't be a surprise to them, as was a pretty wild before moving in with me and she will start wearing wedding rings also after Emma and me get married. But I think our mother is on to us and wouldn't be at all surprised if she already thinks that Jane and me are up to more than just living together. Dad probably wouldn't notice anything, even if I fucked in front of him.