Megan Fox celebrated her 36th birthday with a new tattoo. Machine Gun Kelly debuted their matching ink on their respective ring fingers on Monday.

Page Six said that the “Bloody Valentine” artist shared a photo on Instagram, featuring the tattoos. As described, they are matching voodoo dolls, which appear to represent the actual ones they have in pink.

The post on the platform is his birthday greeting to his soon-to-be-wife. Apart from wishing the "Jennifer's Body" star the “happiest birthday” and calling her “maki” and his “ethereal light being,” it also comes with several other pictures, including a snap of them in matching blue outfits.

The publication noted that the said photo was taken a day before Megan Fox’s birthday. As for the matching tattoos, though, it is reportedly unclear when they had them done on their ring fingers.

Nevertheless, Machine Gun Kelly is claimed to have “subtly show off” his tattoo at the Billboard Music Awards 2022 on Sunday. At the red carpet, the pair appeared all glammed up with their coordinating ensembles.

Following their attendance at the event, a separate report from Page Six stated that the celebrity couple sparked marriage and pregnancy rumors. This came after the rapper called the actress his “wife” and, later on, “dedicated” a performance to their “unborn child.”

It all took place when Machine Gun Kelly took to the stage to perform “Twin Flame.” He consequently noted that he wrote the piece for “my wife.”

Amid the performance, the artist shared that “this is for our unborn child” when a sound of a heartbeat played.

When asked for a comment regarding Kelly’s statements, as well as the surrounding speculations, the pair’s reps did not return the request.

Earlier that night, however, he and Megan Fox reportedly “brushed off” an interviewer’s question about following the footsteps of their pals, Travis Barker and Kourtney Kardashian. The public would recall that the reality stars tied the knot without a marriage license in Las Vegas, an event that has since been referred to as their “practice wedding.”

Meanwhile, Us Weekly previously noted that the terms “twin flame” first came from the “Transformers” actress. She told astrologer Susan Miller and the hosts of “Give Them Lala… With Randall” podcast in July 2020 that she uses such terms to refer to Machine Gun Kelly.

Megan Fox explained that she “knew right away that [Kelly] was what [she] calls a ‘twin flame.’” She noted that “instead of a soul mate, a twin flame is actually where a soul has ascended into a high level that it can be split into two different bodies at the same time.”

The 36-year-old actress continued that she and her fiance are “two halves of the same soul.” She added that she “almost immediately” said it to because she “felt it right away.”