Jim Parsons and his partner Todd Spiewak
Actor Jim Parsons (L) and his partner Todd Spiewak pose at the 10th Annual GLSEN (Gay, Lesbian & Straight Education Network) Respect Awards in Beverly Hills, California October 17, 2014.Reuters

Reports of "The Big Bang Theory" actor Jim Parsons acting like a "groomzilla" is completely untrue, as the actor is yet to get engaged to his longtime boyfriend Todd Spiewak.

The rumour originated after Star magazine claimed that Parsons, who plays Sheldon on "The Big Bang Theory," is turning his alleged wedding into a multi-million dollar production, which is driving Spiewak crazy.

A "pal" of the couple alleged that Parsons had "specific ideas" about how he wants their nuptials to be, and "if Todd disagrees, he's usually overruled." The only time their thoughts matched was when each expressed a desire to have the wedding private, claimed the friend.

However, there appears to be zero truth to the Star story, as Parsons and Spiewak are not engaged, reported Gossip Cop. In August, the actor slammed Star's sister publication The National Enquirer for reporting that the actor proposed to Spiewak. "Me and Todd in 2003. Still very happy today… And NOT engaged!" Parsons wrote on his Instagram account, adding the hashtag, "#NationalEnquirerMakesSh*tUp #duh.

The National Enquirer story had claimed that Spiewak had "wanted to get married for a long time" and felt as if they were "treading water in their relationship," reported E!News.

An alleged pal of the pair said: "Jim has kept telling him he wanted to make sure he was settled and secure before he took on such a major change, but Todd shot back, 'You're going to be making more than $20 million a year now. How set do you need to be?'"

Parsons' boyfriend of 12 years is an art director who has worked for campaigns for American Express and Barnes & Noble. In a moving speech where Parsons and Spiewak were given the GLSEN (Gay, Lesbian & Straight Education Network) Inspiration Award last year, "The Big Bang Theory" actor noted that theirs was a very average, boring life.

"I've never considered myself an activist. I've never considered my relationship with Todd to be an act of activism," Parsons said of his relationship, according to Us Weekly. "Rather simply, it's an act of love, coffee in the morning, going to work, washing the clothes, taking the dogs [out]—a regular life, boring love."