Seyed Ali Shobayri, Seyed Ali Shobayri is of mixed Iranian and Scottish descent who found the path of the Ahlul Bayt (a) by his own research. He holds a BA in Islamic Studies from Middlesex University through the... Answered 2 months ago

Bismillah, 

Asalamu Alaykom, 

You should check this with your marja because some scholars would state that if the intercourse was illegitimate such as the girl committing zina, then she would still count as a virgin and father's permission would be needed. If she however lost her virginity in a legitimate type of way then permission isn't needed. 

May Allah grant you success