They double dog dared them! Caitlyn Jenner and BFF Candis Cayne share a kiss on the Sunday, April 24, episode of I Am Cait — and their friends couldn’t be more thrilled.

In a clip from the upcoming episode, the pair, who have previously sparked rumors of a romance, are enjoying dinner with a few pals when talk turns to Ella Giselle’s vocal prowess.

“What about singing? Can you sing?” someone asks off-camera.

“I don’t have the highest voice in the world,” Giselle demurs before another pal quips, “How about a barter system? What would Cait and Candis have to do in order to make you sing?”

Giselle hardly misses a beat before deciding, “Oh, that’s easy: kiss!”

Jenner’s pal and hairstylist Courtney Nanson loves the idea and urges the besties to lock lips.

“If you two kiss on the lips, she’ll sing,” she says, later adding, “You might as well use your lips. Both of you have gorgeous lips, just like, smack them together a little.”

“It’s like a friendship cuddle, a lip snuggle,” Giselle agrees. “Think of it as a dare, a fun, friendly dare.”

With a look of mischief in her eyes, Jenner then reaches across Cayne’s lap to move a wine glass, brush away a stray strand of hair and lay a big smooch on her BFF.

Watch the clip above to see their friends’ reactions on the season 2 finale!

I Am Cait airs on E! Sundays at 9 p.m. ET.

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