A wide variety of relationship styles fall under the umbrella of polyamory. This couple never expected a girlfriend would make them into a threesome.
I Got My Husband a Girlfriend Who Looks Just Like Me and It Saved
What Happened When I Let My Husband Have A Girlfriend
Yesterday, my husband brought his girlfriend. She is now living
Why would a loving wife allow her husband to have a girlfriend
I'm in lockdown with my husband & our girlfriend - we all sleep in
What Happened When I Let My Husband Have A Girlfriend
My Husband's Girlfriend Moved in with Us During the Pandemic
I got my husband a girlfriend who looks just like me — it saved
I Got My Husband a Girlfriend Who Looks Just Like Me and It Saved
Husbands: If your wife gave you permission to have a girlfriend
Polyamory in marriage: My husband and I usually date together, but