Fathwa, - Marrying a woman whom one's father or sontouched with desire

Question
assalamualaikum,brother...my question is a bit confusing i guess..i
want to ask that if a person touches a girl with emotion,does the girl
become haram for the person's son to marry that girl?...and if the
father in law touched that daughter in law with no emotion before the
marriage of the son and the girl..can the son marry the girl?
Answer
All perfect praise be to Allaah, The Lord of the Worlds. I testify
that there is none worthy of worship except Allaah, and that Muhammad,
is His Slave and Messenger.
If a man touches a woman with or without sexual desire, this does not
make her prohibited to his son or father for marriage. The woman only
becomes prohibited to a man )for marriage( if his son or father
married her. Prohibition takes effect upon concluding the marriage
contract, even if the marriage is not consummated.
Allaah Knows best.