So I just hit episode 29 and they hit 10K subscribers, which means they hit the beard-shaving challenge numbers.
Taliesin mentions he "has a straight razor" and he's willing to help out. It's a joke but like, that got me thinking ...

Matt grows out his beard for charity, gets a decent amount of scruff, but he has to shave it off for a gig. He asks Taliesin to help him out, with his straight razor. Marisha helps and/or watches. Unexpected arousal from the situation ensues for everyone involved.