Robert Pattinson and Kristen Stewart did have some secrets after all. The much loved “Twilight” couple’s co-star Ashley Greene just spilled the beans on it.

The “Twilight” series was a great time for co-stars Robert Pattinson and Kristen Stewart. Even though they had a spark, they kept things strictly professional on the sets, reveals cast mate Greene. She played Alice Cullen in the series.

In an interview to E! Online, Greene revealed 10 things about “Twilight” including details about the romance between Pattinson and Stewart. “Yeah, we all knew that,” said Greene. When pressed further if the couple was affectionate on set, Greene declared “Not really. I think they were keeping it professional.”

Robert Pattinson and Kristen Stewart had one of the most high profile relationships on and off the screen. According to Greene, the entire cast was aware of it even before the couple went public. However, their relationship could not stand K-Stew’s lapse of judgement over her dalliance with Rupert Sanders.

Pattinson is currently engaged to FKA Twigs while K-Stew is over with French singer Soko. However, the two still share good vibes and were rumored to have had a coffee date in LA. K-Stew was spotted wearing Pattinson’s sweatshirt, states gossip sites and their sources.

The actress is also in the news for her new movie “Equals.” Starring Nicholas Hoult, the sci-fi film has a plot that reveals human emotions being eradicated from the society, explains Yahoo News. Hoult’s Silas, however, has feelings for Nia, played by K-Stew. ANN states that the movie features an intimate scene between the two actors, where they touched each other for the first time in the movie and also through the entire shooting schedule.

Kristen Stewart and Nicholas Hoult scene is now speculated to become the best kiss of the year, making it a top contender for the MTV Movie Award for Best Kiss.