Credit: Video Still

It's hard to believe, but Pretty Little Liars has been on for four seasons. That's a lot of thrills, chills, and romance to remember. From now on, we'll be celebrating Flashback Fridays with a memorable scene from a Pretty Little Liars season past, because as much as we like the present season, sometimes nostalgia is fun.

Spencer and Toby have seemed like an unstoppable team so far on Season 4, and after surviving Toby's apparent betrayal last season, it's hard to believe anything could tear them apart. Also hard to believe? That there was a time when they weren't already head-over-heels in love.

However, those days did exist — in fact, their first kiss wasn't until Season 1, Episode 19: "A Person of Interest." But the wait was totally worth it. After some intense "A" hunting — and scrabble forplay — Toby and Spencer finally locked lips in the hotel parking lot.

"I wasn't expecting that," a shocked, smiling Spencer said after they finally broke the kiss.

"Me either," Toby agreed, before slowly dropping his hold and walking away.

And the rest, as they say, was history.

Find Pretty Little Liars spoilers here.

Catch the next episode of Pretty Little Liars on Tuesday, July 30, 2013 at 8 p.m. ET/PT on ABC Family.