My wife's daughter sucks my dick every day

I have had a relationship with a woman for years. when I met her, she had a daughter, whom I adopted as my own daughter. both are blond and very beautiful and I love them ... but something strange happened. the child grew up and she became interested in sex. she wanted to know what men were like and started asking me questions. she was worried about what might happen when she was with a man for the first time. one day we were alone at home and she insisted so much that i showed her my dick. she started to touch me and i couldn't help an erection, so i put it in her mouth and taught her how to suck. she liked it and our meetings started to be more frequent. she wanted to fuck me but i didn't accept it, i told her that everything was done with her mother, but i agreed to masturbate her a few times so that she would have an orgasm. now she is sucking my cock and masturbating at the same time.