There must be some kind of magical pheromone hidden in Justin Bieber’s mop of hair—Kim Kardashian keeps coming back for it.

Despite the pair’s 13-year age difference and the death threats received from their first Twitter appearance together, Bieber and Kardashian were spotted at a Los Angeles Pinkberry yesterday. Kim was smart enough to avoid mentioning Bieber’s name on her Twitter, and instead commented on the frozen yogurt chain’s new flavor: “PinkBerry’s new flavor watermelon is heaven! Has anyone tried it? (sic)”

Even though the two have one romantic beach photo shoot and one frozen yogurt date under their belt, Kim wrote on her blog that she thinks her younger sister Kendall would be a great match for the teenage singer. “I’m all for it…I think he’s just the cutest thing. He seems like a really driven and focused kid, just like Kendall, and they would make an adorable couple.”

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