Warning: there are *light spoilers* for Stranger Things season two ahead 鈥 read at your own risk!

The cast of kids on Netflix鈥檚 Stranger Things aren鈥檛 just BFF on the show 鈥 they鈥檙e BFF in real life, too. With the squad growing up together both on and off camera, their camaraderie is undeniable. Finn Wolfhard (Mike) and Millie Bobby Brown (Eleven), in particular, seem to have an extra-special bond: The two shared a sweet kiss (her first ever!) back in season one of the show, and Wolfhard had the actresses鈥 back when it came to their second smooch in season two, as well.

As Brown, 13, revealed in an appearance on The Tonight Show with Jimmy Fallon, the young actor, 14, whispered some sweet words of encouragement to her before planting one on her in an adorable moment that was actually caught onscreen.

鈥淟ast year, he [Woflhard] was all over the Tic Tacs, cause he was like, eat Tic Tacs, I just want this to be perfect,鈥 she recalled. 鈥淪o, then this year鈥 he wanted to let me know he was kissing me then, so he was like, 鈥業鈥檓 comin in!鈥 And he was like a ventriloquist!鈥

Brown admits it made for some riveting viewing, calling their kiss both 鈥減erfect鈥 and 鈥渁mazing.鈥 鈥淓very time I listen to that song now, I like, get goosebumps,鈥 she says of Sting鈥檚 鈥淓very Breath You Take.鈥 Clearly, the audience was pleased, giving a rousing 鈥榓wwww鈥 of approval. 鈥淣o, it鈥檚 in disgust! I鈥檓 kidding!鈥 she laughed.

Check out the adorable moment above!

Did you catch Finn鈥檚 whispered words? Tell us @BritandCo!

(Photo via Dia Dipasupil/Getty)