Kate Upton's Boobs are Sports Illustrated's 2012 coverboobs, and many people are writing about this achievement because, as noted, Upton's Boobs are unique to SI's traditional coverboobs because they are attached to Upton. Just in case you're unfamiliar with Upton's Boobs, here's a quick dossier.

So, Where did Kate Upton's Boobs grow up? Kate Upton's Boobs were born in St. Joseph, Michigan, but were raised in Melbourne, Fla., which has two golf courses and the William H. Gleason House. Upton's boobs were discovered by a modeling agency early in their career, but as the New York Times points out today, Upton's Boobs are quite an anomaly, first reaching mainstream appeal thanks to the popularity of a video of her doing "The Dougie" in which they proved both rhythmic and pendulous. Look:

Do Kate Upton's Boobs have any family members in Congress? But of course. Upton's Boobs are the nieces of Congressman Fred Upton, a Republican who recently threw his support behind Mitt Romney. He is also chairman on the House Committee Of Energy And Commerce.

Who has fondled Kate Upton's boobs? Upton's boobs have been linked to Kanye West and, more recently, New York Jets' quarterback Mark Sanchez. Upton's boobs have denied being fondled by both these gentlemen.

Do Kate Upton's boobs ride horses? Yes. They were competitive at one time. The name of their horse was Too Shiny Forya which was shortened to "Roanie" because her boobs are playful like that.

When did Kate Upton's boobs get their start? Esquire had a thoughtful interview with the caretaker of Kate Upton's Boobs, Kate Upton, who had this to say about her boobs's early days: "[I] do know that when I was in junior high, I used to be made fun of - for being flat-chested. Everyone would go, "She's not pretty! She doesn't have boobs!" So I always had boob envy. And when finally I went through my growth spurt, and they appeared, and I just... I loved them."

So how big are Kate Upton's boobs? They're quite big, capable of filling out most sweaters. This handy site reveals they are this big: 33DD