On choosing Ronda Rousey's cover: "Ronda Rousey is a cultural phenomenon".
The beauty's ample cleavage was highlighted to perfection in the revealing number which she paired with some killer heels.
All three girls got congrats from their fellow models, including 2015 cover girl Hannah Davis.
Graham dedicated the cover to "all the women out there who never felt that they were handsome enough, who never felt like they were skinny enough, and who never felt like they were going to be able to be represented in society like this".
In fact, she was one of the first curvy or plus-size models to appear in the issue itself, first in an advertisement last year, and then within the editorial pages for this year's issue. While SI's cameras filmed her getting body-painted, the ski racer sarcastically said, "Totally normal right now".
"You can do and achieve anything you put your mind to", she added in the caption.
Graham's Facebook post has been shared more than 61,000 times as of Monday morning and has more than 176,000 likes.
Graham, the sultry beacon of body positivity, is the first plus-size model to appear on the cover. Sports Illustrated is certainly one of those publications. Beauty is not cookie cutter.
The 28-year-old body positive activist from Nebraska will be featured on this year's swimsuit issue, along with MMA fighter Ronda Rousey and model Hailey Clauson. Not only is this the first time that I'm in the issue, but I'm on the cover and sharing this honor with two of the most stunning women. "Beauty is not 'one size fits all, '" assistant managing editor MJ Day explained via the SI website.
Wearing her brunette locks straightened around her shoulders, the 26-year-old was fresh-faced as she posed for photographs.
Graham, who is size 16, is considered plus-sized, which the magazine addressed on its website.