Most body transformation images show people who go from overweight or obese to thinner and fitter. But one  has flipped that script, putting out a before-and-after swimsuit photo that shows how she gained weight. The best part? She's glad about it.

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On Wednesday, Beck Jackson posted the side-by-side comparison of how her body has changed over the past four months, going from super thin to rounder and fuller, with a tiny bit of belly showing at the top of her bikini bottoms.

“Yes I’ve probably gained a kilo [2.2 lbs] or two (I don’t actually know because I don’t [weigh] myself) but yes I’m less toned than I was 4 months ago, no I don’t think I’m unhealthy, no I’m not unhappy,” the 23-year-old wrote.

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Your body will fluctuate so much throughout adulthood and it really shouldn’t take over your life. ⠀⠀⠀⠀⠀⠀⠀ Yes I’ve probably gained a kilo or two (I don’t actually know because I don’t weight myself) but yes I’m less toned than I was 4 months ago, no I don’t think I’m unhealthy, no I’m not unhappy.⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀ You know why? I’ve had fun, I’ve been on holidays, I’ve been eating amazing food, I haven’t been beating myself up when I don’t get to the gym because I’m too busy living my life, ive been really really HAPPY! That’s why I may look different than I did 4 months ago. ⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀ It would have been a different story two years ago, when I was 19-20 years old if I fluctuated in weight by even 100 grams I would LOSE MY SHIT, let alone if my body actually changed, I probably would have had a severe mental breakdown. ⠀⠀⠀⠀⠀⠀⠀ Why? Because I was never confident within myself and that meant that regardless of how much I weighed or what I looked like, or how defined my ab muscles were, I would never be happy with myself. ⠀⠀⠀⠀⠀⠀⠀ Just a tip: try to stay healthy, exercise regularly, but your body doesn’t define who you are as a person, your weight shouldn’t control your life, and if you want to eat a bowl of ice cream after dinner – EAT A BOWL OF ICECREAM AFTER DINNER! Because life is too short to give up those simple little pleasures.

A post shared by BECK LOMAS (@becklomas) on Apr 18, 2018 at 4:41pm PDT

“I’ve had fun, I’ve been on holidays, I’ve been , I haven’t been beating myself up when I don’t get to the gym because I’m too busy living my life, [I’ve] been really really HAPPY!” she wrote. “That’s why I may look a little ‘softer’ than I did 4 months ago.”

Though she’s rocking body confidence now, Jackson admitted that she hasn’t always thought about her shape in such a positive way.

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“It would have been a different story two years ago, when I was 19-20 years old,” she wrote. “If I fluctuated in weight by even 100 grams [.2 lbs] I would LOSE MY SHIT, let alone if my body actually changed, I probably would have had a severe mental breakdown.”

These days, saving room for dessert is more important to Jackson than negative self-talk. “Just a tip: your body doesn’t define who you are as a person, your weight shouldn’t control your life, and if you want to eat a bowl of ice cream after dinner – EAT A BOWL OF ICE CREAM AFTER DINNER!” she wrote. “Because life is too short to give up those simple little pleasures.”