Miley Cyrus and Kaitlynn Carter Pack On the PDA While Wearing Matching Outfits in L.A.

Couples who twin together, stay together! Miley Cyrus and her girlfriend, The Hills: New Beginnings star Kaitlynn Carter, stepped out together on Saturday, September 14, in Los Angeles, California after spending time in NYC for New York Fashion Week. Miley, 26, and Kaitlynn, 31, looked grunge-chic in their matching outfits as they packed on the PDA during their outing.

The “Slide Away” singer wore a light wash, boot-cut jean that featured a rip above each knee. She paired the jeans with a cropped black Metallica band tee, black platform patent leather boots and black oversized sunglasses. Kaitlynn also opted for light wash jeans, but hers were straight cut and cropped and only featured one rip above her right knee. She paired her distressed denim with a plain black t-shirt that was tucked in, and she accessorized with black sheer slippers, black and gold aviator sunglasses and a black and gold mini crossbody bag.

This is just the latest in the slew of PDA moments that Miley and Kaitlynn have shared in recent weeks. The former Disney star partied it up with Kaitlynn as they celebrated her 31st birthday on September 4, at Sunset Tower in Los Angeles. “They were all over one another and didn’t care who saw,” an eyewitness at the hotel told In Touch exclusively.

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Then, on September 9, Kaitlynn commented, “dear god,” on a sexy photo that Miley posted to Instagram. After that, they jetted off to NYC together, where they also wore matching, all-black outfits for a date night on September 10. But it was Kaitlynn’s new bling that captured everyone’s attention: she wore a gold ring with the initial “M” on it on her left ring finger.

But even though they might not be engaged yet, a source exclusively revealed to In Touch that things are getting serious between the couple. “Miley and Kaitlynn’s relationship isn’t just for show,” the insider said. “They’re genuinely in love. … Miley is so happy.”

Scroll through the gallery below for more photos of Miley and Kaitlynn on their PDA-filled outing!