8/27/2016 5:45 PM PDT BY TMZ STAFF
The two are down in Cabo … and it’s clear to see, there’s an awful lot of chemistry between the new couple. Richie turned 18 Thursday and the two got on a private jet Friday to head south of the border.
Justin doesn’t seem too shy to show some skin either, dropping trou right next to a butler.
Who needs Instagram, anyway?