Shawn Mendes and Camila Cabello have been this summer’s hottest couple, but their relationship could just be a publicity stunt.

The two have been seen making out almost everywhere from a cafe in Oakland to a bookstore in Tampa.

Mendes and Cabello don’t shy away from cameras when they engage in PDA.

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One video even shows Mendes staring at Cabello when he saw someone recording them.

Fans are starting to get suspicious as more and more footage of the two appear on social media.

“Which was the worst attempt at a fake relationship PR stunt to promote a collaboration? Zedd dating Selena Gomez or Shawn Mendes dating Camila Cabello?” wrote one Twitter user.

“this whole PR stunt is so tacky. they really are falling off,” wrote another user.