Jonas took to Instagram to post a throwback photo of himself with the 19-year-old Fifth Harmonysinger, captioning the pic, "That moment when..." with the sunglasses emoji next to it.
The ambiguity of the caption along with some "close" body language caused some mixed reactions among fans. Many commented, asking, "Are they dating?", while others went as far as coining the two as "Nilla."
Cabello shut down the speculation, referring to Jonas as her "friend" by sharing the link to his new album, Last Year Was Complicated.
Something we can say without a doubt is that friends know how to be fashionable! Camilla's body-hugging floor-length gown complements Nick's monochrome ensemble perfectly.
Since his breakup a year ago with Miss Universe, Olivia Culpo, Nick's dating life has been the center of much gleeful speculation.
For instance, questions about the nature of the relationship between Jonas and Kate Hudson, who's 14 years his senior, have swirled for months. The "Jealous" singer said on Watch What Happens Live that the most recent thing he texted her was, "Hope you're well."
Don't be fooled by the unassuming emoji—behind those sunglasses is a man of mystery.