Soft weenie

Hey ladies I need some advice!

My s/o has a sex drive a lot lower than mine, and recently (within the past few months) there have been a few occasions where he’s had a hard time getting a full erection when we’re intimate.

He’s only 21 and from a little research it seems unlikely that it would be erectile dysfunction.

The only other diagnosis I could see is low testosterone. We haven’t had the chance to sit down and talk about it yet, but I would like to. I know it embarrasses him, but I’m not sure if he’s done any research or anything.

Anyone have any experience with this? He knows I don’t love him any less because of it but I want him to be comfortable working through it together. Has anyone else had a partner with low T? Is it an easy fix?