In the Vox Machina campaign, there are two couples in the party. As it is all role play, nothing takes place on screen, but characters kiss and sex is implied several times. Additionally, two of the characters often makes crude jokes and occasionally visit brothels.

No nudity, but extremely suggestive dialogue at times.

When the players defeat a "boss" NPC they often describe in great detail how the kill takes place, some of these kills are very bloody but nothing is seen on screen.

a few F-words per episode including very few uses of bitch, shit, damn and crap.

As Critical Role is a fantasy setting, the consumption of alcohol and other substances is common, but a few characters are implied to be alcoholics. Additionally, many players drink (water) onscreen.