ass twitching during injections

[chevy44]

i always shoot in my glutes, and everytime i put the needle in, my ass twitches and i dont even flex or move or nuffin. the same shit happens when i shoot my brother, i was just curious if anyone else has this lil spasm! its almost like its the muscles way of saying, " please dont stick that in me!"

[H BOMB]

yeh it happens in my delts sometimes, prob just going through a nerve

no biggie