Justin Bieber, Hailey Baldwin Just Friends, Really?

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Justin Bieber and Hailey Baldwin have always said they're just friends, but seriously ...

The Biebs and Baldwin spent New Year's Eve together in Anguilla, and they were overtly affectionate ... check out the video below ... he's givin' her a wet willy.

For her part, Hailey posted the pic above ... where she's kissing the nape of his neck.

Enough evidence?