James Taylor and Vinny Ventiera were just friends when they were vying for JoJo Fletcher's love on TV ... now they're bonafide beach buds.
We got the two axed 'Bachelorette' stars getting in some QT in Cancun, where they hit the waves ... and gave up tons of high fives -- a telltale sign of bros for life.
James and Vinny even chatted up some chicks at a restaurant nearby.
They left without the girls ... but at least they've got each other.
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