Robert Pattinson and FKA Twigs' wedding has been delayed. Insiders have explained the real reason behind the postponement of the highly-anticipated nuptials between the "Twilight" actor and "Two Weeks" singer.

According to a report from People, Robert Pattinson and FKA Twigs agreed to push back the wedding until autumn so that the bride-to-be can fix the all the details.

"She can't decide what [kind of] wedding she'd like to have," an insider said about the hunk actor's fiancé.

"She talks about it keeping as real and low-key and then wants an elaborate glamorous Baroque affair."

"She was even talking at one stage about having a masked ball," the insider added.

An insider also explained to Hollywood Life that fans of Robert Pattinson and FKA Twigs do not need to worry about why the wedding was delayed.

"Things are going very well and they are both very happy with each other," an insider insisted.

"Don't take this news as a bad thing - they just want to get it right because they only want to do it once. FKA wants it to be perfect and she keeps going back and forth on ideas."

"She definitely wants it to be amazing, so she keeps thinking of things to add to the festivities!" the insider added.

Many have pointed out that the two are moving too fast after getting engaged just months after they started dating. However, the hunk actor is reportedly not in a rush and is letting his girlfriend take charge of the wedding details.

"Rob is in no rush," our source adds. "He knows that it is going to happen and he's happy with that.

"He is fine with the delay because he's happy with their relationship. They spend time apart, but they make sure to see each other often."

With insiders talking on behalf of the couple, many were not surprised when FKA Twigs refused to discuss her wedding during a recent interview. E! News recently reported about how the trip-hop singer joked when a reporter asked her about the nuptials.

"Who told you I was getting married?" FKA Twigs asked back.

"[I'm] not prepared to talk about my private life. I don't really understand the fascination.