You want bouncy bara tiddies? Keep reading.
Now, there are two physics engine in Skyrim.
HDT-SMP or CBPC. Both can co-exist within the same load-order, but you might want to decide which one you use. I personally use HDT-SMP for my nude body until OStim made it possible for me to initiate a 100-men gangbang orgy, then I might switch to CBPC.
Unfortunately, CBPC uses the same config for men and women's bodies. I like my women to have big bouncy fat breasts too and that looks too funky with HIMBO. I advise you to have firmer config for the women if you want to use CBPC version.
Install HIMBO V4 - Physics Addon and put it above HIMBO BodySlide Output.

Assuming you read my previous tutorial, your BodySlide should be set to generate into the (should-no-longer-be-empty) mod, namely HIMBO Bodyslide Output.
Launch Bodyslide, click Group Filter, tick HIMBO Body for SOS Physics.

* No, I will not make a Nevernude physics-enabled body. If you want bouncy bara tiddies, please embrace the SOS.
You have a couple of body that you can choose here.
Why is there two HDT-SMP version? The second one have Collision Meshes (The grey NO IMAGE meshes). They will be invisible in-game, don't worry.
I was told that bounce physics generally don't need collisions meshes for subtle jiggle, but I was told that collision meshes helps in VR if you want to slap some random NPC's man tits with your barehand. The Choice Is Yours, really.

You should know the drill by now, click Build. Ensure this have the same preset with your previous session to ensure compatibility.

All done.
9 comments
I can't calm his tits
https://imgur.com/30jNP7a
While SMP has individual configuration for every actor, it needs a huge amount of ressources.
CBPC is one configuration for every actor, taking much less ressources.
If you use CBPC with soft configuration for female, male will have soft configuration too.