My wife's daughter sucks my cock everyday

For years i have been in a relationship with a woman. when i met her, she had a baby girl, who i adopted as my own daughter. both are blonde and very beautiful and i love them ... but something strange has 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 in the house and she insisted so much that i showed her my cock. she started to touch me and i couldn't avoid getting an erection, then i put him in her mouth and taught him to suck. she liked it, and our meetings became more attended. she wanted to fuck me but i did not accept, i told her that everything was done with her mother, but i agreed to masturbate her some times so that she experienced orgasm. now she is sucking my cock and masturbating at the same time.