I'm roughly 8" circumf (thicker than my wrist). I know I always go slowly. (shrug) I only put in what is accepted.
I am resuscitating this thread because of Jonah's Falcon and other guys fat fat girths ...appreciation and in some extreme cases: awe of you.
Plus I really enjoy to know about how different girthy men feel, sensations skin to skin and etc when penetrating women.