Blake Shelton Fakes Baby Bump Amid Gwen Stefani Pregnancy & IVF Rumor: Adam Levine Encourages Pal To Become Dad?

The new trend for celebrity parents-to-be has become sporting matching baby bumps. Credit for kick-starting the trend goes to eagerly expecting parents Adam Levine and Behati Prinsloo, who posed for “popping” pictures, pointed out In Style.

“Week 20 and I’m finally popping! #impregnanttoo,” joked Adam in his caption.

Adam wasn’t content to sport his own pretend baby bump. After sharing the photo showing The Voice coach and singer posing with his pregnant wife Behati and his own matching protruding tummy, Levine persuaded his buddy and fellow coach on The Voice Blake Shelton to flaunt his own big belly pose.

His pal even matched Adam by sporting the same bump pose with Levine’s wife.

“Met these two sweet pregnant ladies today,” wrote Adam for the caption. ” Good luck @blakeshelton and @behatiprinsloo!”

It’s all part of the increasingly close friendship formed among Prinsloo, Levine, Shelton and his own gal pal Gwen Stefani. The quartet shared a backstage selfie sharing their #couplegoals recently. But does the new photo of Blake with Adam’s wife hint that Levine is encouraging his buddy to become a dad himself?

At 46, Stefani is on board with the plan and allegedly has been undergoing IVF, according to Hollywood Life.

Rumors have swirled that she is already expecting twins because of IVF, which boosts the odds of having more than one baby. But a source quoted by Hollywood Life stated that she is not yet pregnant, but has made changes in her life in order to have a baby with her country music superstar boyfriend.

“Gwen’s been told by fertility doctors that she needs to relax her strict diet and workout regimen as she hopes to become pregnant with Blake’s child. She’s gained seven pounds in the past month and has already begun IVF treatments, which also cause weight gain because of the hormones.”

In addition, the insider revealed that Stefani will “do anything” to have another baby. She has been advised that by choosing IVF, the chances of having twins are greater, and that’s not an issue.

“The odds of having twins increase with IVF, and she would be thrilled if that happens,” added the source. “This is a big adventure…they’re ready for whatever the future holds.”

While Stefani already has three sons, Shelton will be new to the parenting game. But his buddy Levine just might help him get some experience, because the friendship that Adam and his wife have developed with the country music superstar makes him a great choice for godparent, points out E! News.

In addition, Shelton has been practicing to become a father, hanging out with Gwen’s sons. He also has shown he has a kid-friendly sense of humor, as shown when he hosted the Kids’ Choice Awards. A godparent who dresses up in onesies and is happy to get slimed? Put him on the babysitter list.

Blake apparently has influenced one of Stefani’s sons, little Apollo, according to ET.

Although he is only 2-years-old, Apollo teamed up with his mommy to rehearse on Snapchat for her tour. And although he isn’t the featured singer yet, Apollo showed he’s got the courage and confidence it takes to become a future star.

Apollo did an adorable version of “Old MacDonald Had a Farm,” sporting a nautical-themed scarf to show he’s got style. But does the little boy also have potential as a drummer? Apollo added instrumentals to the show by banging two drum sticks together, giving his rendition some extra charm by chewing occasionally on a purple pacifier that was the perfect complement to his tiny blue jumper.

Apollo’s father is Stefani’s ex-husband and Bush frontman Gavin Rossdale, so the little boy appears to have inherited some impressive musical genes. His brothers are 9-year-old Kingston and 7-year-old Zuma.

[Photo by Kevin Winter/Getty Images for iHeartMedia]