Chrissy Teigen
Model Chrissy Teigen blows a kiss as she arrives at the 2015 Billboard Music Awards in Las Vegas, May 17, 2015. Reuters/L.E. Baskow

American model Chrissy Teigen has bared it all for the next issue of Women's Health magazine. The bikini model with a killer figure also talked about why she wants to get pregnant and how she tackles her weight issues.

"I used to take pride in the fact that I didn't have to work out, and then I hit that age where you have to,” the 29-year-old told Women's Health. She is not a big fan of exercise but still looks bikini-ready all throughout the year. But it does not come easily for her. "My tummy has always been my problem area," the model said. "I've never seen an ab, no matter how many crunches I do."

Singer John Legend's wife is also a big foodie who loves her alcohol and “hearty dinners.” She prefers to undertake a grueling one-hour workout rather than sacrificing her food habits. "I've always had to watch myself. My family is not naturally thin and we put weight on quickly. I find low-carb works for me," said Teigen.

The Utah-born beauty is also planning to release a cookbook in 2016, but working on it has been a fattening experience for her. She told the magazine that she put on some weight while writing that book and experimenting with new recipes.

Her fans may think that the Sports Illustrated model has a perfect figure. but she is not very satisfied with her skinny look. "I would love to have a little fat on my sides so I can be sexy, curvy," she explained to the magazine, adding that she wants to have a bigger backside like her friend Kim Kardashian West.

Her wish might come true soon as the model and her husband are planning to expand their family. The couple is just waiting for the “things to slow down” a bit so she can conceive. "I'd love to have an excuse to be bigger,” Teigen said.