With reshoots currently underway on Avengers 4, actors Gwyneth Paltrow and Robert Downey Jr. have reunited to reprise their roles as Pepper Potts and Tony Stark/Iron Man. In celebration of their reunion, Paltrow posted a selfie, presumably taken on set, with her on-screen significant other.

Paltrow posted the picture with Downey to her Instagram. A caption accompanying the photo reads, "Lunchtime," alongside the hashtag "#Pepperony" (Tony and Peppers fan-given ship name).

RELATED: Avengers 4: Ruffalo Calls Film a ‘Living Organism,’ Describes Reshoots

Paltrow and Downey Jr. have certainly come a long way as their respective characters, having made their Marvel debuts as Pepper and Tony all the way back in 2008's Iron Man. The two subsequently appeared together in Iron Man 2, The Avengers, Iron Man 3, Spider-Man: Homecoming and Avengers: Infinity War. The untitled Avengers 4 will mark their seventh time appearing together in a Marvel film, which, depending on how the story plays out, could also very well be their last, which would make Paltrow's photo a rather bittersweet one indeed.

RELATED: Jeremy Renner Shares Photo From Avengers 4 Reshoots

Directed by Joe and Anthony Russo, Avengers 4 stars Robert Downey Jr., Chris Evans, Chris Hemsworth, Brie Larson, Mark Ruffalo, Jeremy Renner, Scarlett Johansson, Paul Bettany, Anthony Mackie, Paul Rudd, Elizabeth Olsen, Tom Holland, Benedict Cumberbatch, Chadwick Boseman, Chris Pratt, Zoe Saldana, Dave Bautista, Bradley Cooper, Vin Diesel, Karen Gillan, Evangeline Lilly and Josh Brolin. The film is set to hit theaters on May 3, 2019.