A Condom can stretch over a human head and can stretch to hold over 2 Gallons of Water so it defo isnt a Size thing, its purely in your own head.
I find it strange as if went down on any woman for any length of time I would be rock hard just from the sexiness of it but everyone is different. I get hard just thinking of a bar maids cleavage, others take a while.
I would say that you need to masturbate with the condom on and get used to it, you shouldnt put one on whilst flaccid as it is a common way for them to stretch in the wrong way and fail (read the instructions)
Joke to keep it funny "did you know that all condoms now have a barcode at the bottom?" if no then you are not having to roll it down as far as me:biggrin1:
The reason men with larger sizes can't stuff into condoms is not because the condom can't support their size, but because it's actually painful to try and stuff your dick into that tight condom. I had trouble even with Magnums cuz I'm thick too. And it hurts like hell tryin to stuff in there when I'm hard. It has something to do with the sensitivity of the penis as opposed to the inability ot the condom to stretch.
And while ONE person may have stretched a condom over a head, and ONE person may have stretched a condom with gallons of water, those are few and far between instances. Condoms are much tighter than those examples might lead you to believe.
If you think ALL condoms will stretch to insane proportions, tell that to the hundreds of thousands of woman who get pregnant each year from a condom breaking. And these are average sized men. Imagine larger men.
Condoms' consitency and stretch capability is dependent upon that specific condom, not two instances of head-stretching and gallon filling, I think.