Credit: Instagram

After four years working together, the Pretty Little Liars cast is filled with best friendships one of our favorites is the bond between Keegan Allen (Toby) and Troian Bellisario (Spencer). The two play lovers on PLL, but in real life they are just friends. But that doesn’t diminish what they mean to one another! Check out what Keegan said about Troian at the 100th episode celebration...

“Bea? OTP? #PLL100 I remember our first time working together. 100 episodes later, still best friends,” Keegan adorably captioned a photo of he and Troian at the big celebration. Excuse us while we friendship-swoon.

After an end to Season 4 that was saddeningly light on the Spoby, we’re hoping to get some quality time in with these two come Season 5. We know Season 5, Episode 2 (“Whirly Girlie”) will be a big one for the duo. “OK Spoby's. DO NOT MISS EPISODE 502!  There I said it. Kinda loudly,” executive producer Marlene King tweeted last month. And that’s without taking into account this snuggly Spoby video Keegan shared from the set.

Keegan and Troian have also been joining forces to tease us PLL fans about a big reveal coming our way. Last month, Troian shared a photo of Keegan looking at Marlene in shock, along with the caption: “Storytime with Mar. trust me. You all are so sad you missed out on this one. (Now keegs and I can really be know it alls).” Are these two just pulling our collective fan leg or is there really something major coming in the Spoby storyline? We’re pulling for the latter.

Catch the next episode of Pretty Little Liars on June 10, 2014 at 8 p.m. ET on ABC.