Horny Brother

My brother isn't great with dating girls as he gets shy and quiet around them. But with me he has no problems talking with or asking me for sex and I'm quite willing to let him fuck me as I'm always broke and have a dead end low paid job and my brother has high paid career path that is going great. It started when I needed a place to live just before pandemic started and so I moved in with him during the lockdown we started fucking. We've kept it up ever since, I don't have to work or even clean my brother apartment. He has a cleaner come and do that for him, I just let him fuck me whenever he wants, or I want. He is always horny and regular sex is the normal for us. The other residents think we're married and us having a son because I made a mistake helps with that. Our father is departed to parts unknown, and our mother as just accepted us being lovers. Perfect arrangement for me and it suits my brother as well. We may or may not have another child, I'm easy either way.