When my sister shows up saying she needs to talk with me, I know what that really means. She had another fight with her husband again, because he doesn't fuck her for months, she needs a cock and she's suspicious he's fucking other women. The safe place to get a cock without her husband finds out is to stay at our parents house for a few days, get fucked by me (her brother) and after things get solved, she goes back to her husband with a big smile on her face, until next time.