Forget Father's Day. For Gwen Stefani, June 18 was all about Blake Shelton's birthday!

The blonde beauty gushed over her boyfriend of nearly two years as he celebrated turning 41. "I get to kiss on the birthday boy @blakeshelton #happybirthdaycowboy," the mother-of-three captioned a pic of the duo sharing a smooch.

Gwen also shared a video of her Voice co-star balancing balloons on his head and a photo of his very realistic armadillo cake.

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Birthday armadillo @blakeshelton gx #bdayboy #cake

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The couple is doing well again after going through a rough patch last month. "[Gwen] wants the world to think everything is perfect with Blake. But that’s just not the case anymore," an insider told Life & Style at the time.

A different insider revealed that NBC producers were pushing the pair to get engaged on their hit singing competition, but they weren't ready to take that next step. According to a report, they don't want to ruin the good thing they have going by tying the knot.

MORE: These Rare Gwen Stefani No-Makeup Pics Prove She's Flawless!

"One thing they often bring up is how they could be the modern-day Goldie Hawn and Kurt Russell and be together forever but never get married,” a source recently told Hollywood Life. “They would be equally happy with that route as well. They are taking it all in stride and are refusing to be pressured into doing something that they don’t want to do. Blake and Gwen are on the same wavelength with each other and that is why their relationship is working so well.”

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Gx

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And Gwen isn't the only one who has nice things to say about her partner. “My marriage fell apart, and then (I was) trying to pick the pieces up from being at the rock bottom… Next thing you know, there’s this person that I kind of knew, that I worked with on the show," Blake explained of how his relationship with Gwen came to be. "This is how my life turned around — and so quickly, too, by the way. It was like, 'Whoa!' All this just has to be meant to happen."

Scroll through the gallery below to see the duo's cutest photos together!