Adam Levine, Behati Prinsloo touch tummies in this adorable pic

There's something to be said for the couple that bumps together.

On Tuesday, Adam Levine shared this sweet black and white pic of his belly grazing the pregnancy bump of his wife, model Behati Prinsloo. The singer, who sports some serious ink, joked that he was "finally popping" in the caption.

Warning: This snap isn't exactly safe for work since the couple isn't wearing much of anything.

We first learned that the Victoria's Secret angel and her hubby were expecting in March. And, Levine's photo indicated that Prinsloo is in her 20th week of pregnancy, which she seems to be enjoying. A week ago she held her bare belly on Instagram and wrote, "So far so good," for the caption.

She's also embracing the mom-to-be jeans.