They're not romantically involved on Pretty Little Liars, but in real life Shay Mitchell (Emily) and Ian Harding (Ezra Fitz) are sending out quite the flirty vibe.

"@IANMHARDING this Saturday. It's on. No excuses... ;)" Shay tweeted to Ian yesterday. He replied, "@shaymitch it's on. You're going to cry." Umm, guys? What's on? And why are we using wink faces and ambiguous word choices?

While we're sure these two co-stars just have some kind of workout class or friendly shopping date planned, we're not the only ones who noticed how wink-wink this exchange sounded.

"@IANMHARDING @shaymitch I hope you both do realize how sexual this sounds hahah," Lucy Hale (Aria) tweeted later in the day. Uh oh, is someone getting threatened by her on-screen boyfriend's off-screen flirting? We love a pretty little love triangle!

Catch an all-new episode of PLL on Tuesday, June 26 at 8 p.m. ET/PT on ABC Family.

Follow Alissa Kombert on Twitter @AyeKayArt.

Source: Twitter

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