AceShowbiz - Steve Martin added fuel to the swirling rumors about a potential romance between his "Only Murders in the Building" co-star Martin Short and guest star Meryl Streep with a hilariously cryptic Instagram post on October 19.

The 79-year-old actor shared a snapshot featuring the trio yet obscured his face with a giant red X, effectively taking himself out of the picture. Fans quickly read between the lines, speculating whether this was a clever hint at the co-stars' relationship.

"Are you confirming this relationship?!" one fan commented while another added, "Did he just hard launch the relationship?"

Rumors about Streep, 75, and Short, 74, being romantically involved date back to January 2024 when they were spotted together at the Golden Globes. Despite Short's representative promptly denying these claims, stating they were "nothing more" than friends, the duo's repeated appearances together only intensified the speculation.

Most recently, the rumored couple was seen smiling ear-to-ear on a dinner date at Giorgio Baldi on October 16. This, coupled with sightings at Broadway plays and other events, has kept fans guessing about the true nature of their relationship. Adding to the intrigue, the actors were seen holding hands at the Season 4 premiere of their hit Hulu show, amplifying the sense of a deep, possibly romantic bond.

The Instagram post came just days after news surfaced that Meryl Streep had quietly separated from her husband of 45 years, Don Gummer, over six years ago. Streep's rep confirmed, "Don Gummer and Meryl Streep have been separated for more than 6 years, and while they will always care for each other, they have chosen lives apart."

Martin Short, on the other hand, has been single since the passing of his wife, Nancy Dolman, in 2010. The pair had three children together, making this rumored relationship with Streep a significant point of interest for fans and media alike. It's interesting to note the multiple occasions - dinners and shared public outings - that have fanned the flames of these rumors.

The camaraderie and chemistry between Streep and Short, both on and off-screen, are undeniable. Their joint appearances and mutual affection have led fans to support the idea of them as a couple, even if this remains unconfirmed. Steve Martin's playful post only adds another layer to this fascinating Hollywood narrative, leaving fans guessing and enthused.