The title says it all finding a post where the op said the girl looked like Sarah shahi, the guy was black and I think so his name was Dominic the girl was Muslim and had a fiancee but her friend encouraged here to be liberal. The girl initially hated the guy but the met a party and the do the deed it was very erotic. The op also posted a link to the site where he wrote the full story.
Any help is appreciated thanks.