This is in my wheelhouse...
Swinger Podcasts (you can Google the links):
Curious Couple - Looks like they are no longer podcasting, also the links/format are a trainwreck.
That Couple Next Door - hot! I love the intro with Sophia.
We Gotta Thing - As much about marriage/relationships as it is swinging. I keep a few of the episodes on my phone to listen to when I am "struggling".
Swinger Diaries - Three topics per episode.
Front Porch Swingers - BDSM, Hot Wifing. A bit obnoxious, but I can't stop listening.
Sexpositive Podcasts:
Started, but no longer listening:
Sex Gets Real
Sex and Other Human Activities - became a mental health focused podcast.
Tristian Taramino - I listened for a month and half before I decided I should stop listening or pop my ear drums with an ice pick.
There must be a couple more.
Still listening:
Sex With Dr. Jess - She's so damn cute. And, indirectly got my wife and I into this! ;>)
Sex With Emily
Speaking of Sex with the Pleasure Mechanics
Why are People Into That - I had no idea.......
Erotica:
Kiss My Quicks
Related:
Committed - Stories of relationships out of the ordinary.
And about 3x more vanilla ones....