Slim Fast

This is fantastic: Kate Upton -- one of the hottest women in the world -- has bravely taken it upon herself to dispel crazy reports she's insecure about her body ... insisting she loves every inch of her flawless physique.

The Sun newspaper ran a story over the weekend purporting to quote Kate, who allegedly said, "I wish I had smaller boobs every day of my life." But Kate now insists she never said that.

She just tweeted, "Unfortunately, what was said about my body is completely made up to try and drum up controversy where there is none. Like every woman, I have moments of insecurity, but I love and am proud of my body -- every part of it -- and wouldn't change a thing."

That's right. Kate Upton wouldn't change a thing about her body. Imagine that.

What isn't Gilbert Grape eating? Leonardo DiCaprio hit the beach last week with his 21-year-old supermodel girlfriend looking rounder than usual ... but the fact is, Leo's so rich and awesome, it doesn't matter.

Days before dancing like a weirdo at Coachella, Leo and his GF Toni Garrn vacationed in Bora Bora. While Toni removed her top and unleashed her boobs, Leo removed his top and unleashed his as well.

And no one cared ... because he's Leonardo DiCaprio.

Seriously, though. We're big fans.

Chumlee from "Pawn Stars" was quite the popular guy this weekend ... hanging with a bevy of beauties at Rehab pool at the Hard Rock Hotel in Las Vegas.

He's lost about 75 lbs. in the last year, and stars on a super popular reality show, but we're sure the girls were totally into him for his personality.

Amanda Bynes got a side benefit from intensive therapy for schizophrenia and bipolar disorder ... a bangin' body.

Sources familiar with Amanda's treatment tell us ... doctors told her daily exercise was an important part of regaining balance and calm, and it's very clear Amanda has been a good patient.

So this week she's been chillin' in Mexico for Spring Break -- doing it up CABO STYLE.

The trip was a present from her parents, who chaperoned her ... meaning no beer, body shots or wet T-shirt contests.

She's on break from her fashion design school, where she's done incredibly well.

Amanda -- who turned 28 Thursday -- clearly learned a thing or 2 in school, 'cause she looks great in a green bikini!

Gerard Butler looks ready to do battle with Xerxes again, flashing his buff bod on Sydney's Bondi Beach yesterday.

THIS ... IS ... Atkins? Jenny Craig? More gym, less lunch?

Don't expect Megan Fox to wear mom jeans after popping out another kid last month ... because she already lost all the baby weight -- in 5 freaking weeks!

Fox ran some errands Friday in Los Angeles with her other son Noah -- after giving birth to Bodhi Ransom in February -- and one thing is clear, girl was looking GOOD.

Record temperatures in Miami this week -- after these two Argentine models scorched the beach ... wearing these ridiculous thong bikinis.