2026 is already off to a great start for Alex Pereira and Tracy Cortez -- the two UFC stars went public with their romance ... and sealed it with a kiss!!
The light heavyweight champ shared an inside look at his New Year's Eve festivities on Wednesday ... showing 38-year-old Poatan and his loved ones setting off some fireworks and sparklers in a backyard.
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It turns out the 32-year-old flyweight was among those present for the bash .