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Brian : Sleepy (Sound)

3D view of diaphragm

3D view of diaphragm

Another_Yo_Semite! ✡️ - @brenonade As an ICU nurse, what do I see? I see a man using his accessory muscles to take a deep breath. His sterno

What Muscles Are Used for Forced Inspiration Breathing? - 3D Muscle Anatomy & Diagrams

What Muscles Are Used for Forced Inspiration Breathing? - 3D Muscle Anatomy & Diagrams

Diaphragm - 3D Medical Animation || ABP ©

Using Accessory Muscles of Respiration

¡SOUND ON! And imagine me being this close to you while I use you as my little slut 🤤

Breathing exercise (Kupocun)

Muscle guys breath play - chocked and passed out

Exhausted after that workout 🥵

"Flex those muscles to every single beat!" 🍆

Lily will make you have a hands free orgasm by squeezing your pc muscles.

Squeezing him is my new favorite thing to do

Some breathing work