Warning: This article contains spoilers.

There will be a lot to look forward to when the next and final season of CBS' "Two and a Half Men" premieres this fall, including an unexpected same-sex marriage.

According to CBS Entertainment President Nina Tassler, Ashton Kutcher's character, Walden, will suffer from a health scare that causes him to re-evaluate life and propose to his roommate Alan, played by Jon Cryer, although both men are heterosexual.

"Walden has a near-death experience," Tassler told TheWrap. "It forces him into sort of this existential quandary and to evaluate the meaning of his life, the quality of his life, which prompts him to say, 'I need to put down deeper roots.' And he wants to adopt a child."

Tassler went on to explain that Walden believes it will be easier for him to adopt if he were married, rather than if he is single.

"He wants to adopt a child and it is particularly challenging to do so as a single male. So he decides that he and Alan should get married, and they will adopt a child as a gay couple," Tassler announced Thursday during the Television Critics Association summer press tour in Beverly Hills, according to ABC News.

Asked if she expects the plot to stir up controversy, she responded, saying, "It's going to engage people who perhaps have not wanted to be part of this conversation before. The reality is it is legal, same-sex marriage, and it is legal for you to adopt a child and that's what they're doing and they're doing it in a very public forum. It's a ruse, but the reality is it is legal and it may engage viewers who haven't necessarily wanted to talk about it before and people will be talking about it."

When asked if original "Two and a Half Men" star Charlie Sheen will return in for Season 12, Tassler gave ABC News a simple answer.

"Not at this time, no," she said

Sheen, who now stars on FX's "Anger Management," was famously fired from the show after he got into a public feud with show creator Chuck Lorre in 2011, reported E! News. He was then replaced by Kutcher, who became the highest-paid sitcom actor on TV during the show's 11th season, when he earned around $700,000 per episode.

Season 12 of "Two and a Half Men" premieres on CBS on Oct. 30.

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