This mod adds collisions for the Breast,Butt, and Pelvis to the Yuriana Buxom Wench Follower as this is my first mod let me know if you have problem and i will try to fix is as I'm still learning 

 There are some Mods of the newest Versions you will need to make this work 
Buxom Wench Yuriana by lordkoz
CBPC - CBP with Collisions for SE by ShizofXP32 Maximum Skeleton SE by Groovtama 
FNIS  Fores New Idles in Skyrim SE by fore

Recommend for best results
Sexy Idle Animation SSE by Kamo1

Credit:
all the above mod authors but ill say it again 
Lordkoz for uploading Yuriana 
Shizof for the great physics and the how to set it up 
Groovtama for giving us the skeleton
fore for the tools and animations we need 
Kamo1 for the animation i needed to test and its a great set too 
jonwd7 for NifSkope