Post obscure muscle groups that are actually important and can be game changers when it comes to athletic performance and general fitness
For me, it's the popliteal fossa

the tunica albuginea

>>76250873 (OP)
the soleus is so important yet so obscure it's not even labelled on your nice cartoon

>>76250899
soleus is not obscure, most rooners are aware of it

Women can actually train their vagina wall muscles

>>76251516
My wife does that and is quite proud of it.

>>76251516
and they should so they can do that chinese vagina dick massage shit

>>76251575
That only happens in fetish porn videos

I was trying to figure out a forearm pain and cracked my old copy of Gray's Anatomy and read through the tricep section
one of the functions of one of the triceps is adduction of the arm (bringing it back toward the body). you can even feel it just sitting in place, pulling your arms closer to your body, something, tighten in your tris.
tl;dr keep your arms back when you're doing your tricep pushdown.

I just want to train my prostate and shoot massive ropes