What if I love sex so much that my new brother doesn't like sex? I'm worried... My step-sister wants sex from good morning to good night!

My sudden step-sister is incredibly cute, but the day she first came, she says, "I...I love sex. I want to do naughty things all day! Who is your big brother?" and she is such a girl who loves sex so much that she loves sex, asking me if she likes sex! I wonder if she's okay because she's not related to her blood, as soon as she gets home from school she says, "Mom is coming back, so hurry up and have sex," and she immediately gives a blowjob! He asks him as many times as he can and then he even forces him to cum inside him!