I get viagra prescribed to me about once or twice a year for the last 2 years. I don't use it when im with civilians because i don't need it, but i must say, it's soooo much fun to take half a pill and see an SP for 2hrs...
I'm a younger guy, 27, and i'm in perfect physical health. I get it prescribed to me from a walk-in clinic and i've had all different doctors prescribe it to me with absolutely zero problems.
I tell them first that my family doctor is a woman and that i feel uncomfortable talking with her about it. Then I explain to them that I know based on how i wake up and what im capable of alone that im physically fine and capable of getting and maintaining an erection... then the curve ball is that i tell them im incapable of doing so whenever i'm with a new partner! I tell them having viagra for new partners gives me whatever confidence I need...
the doctors usually say "ohh hey, no problem, it's more common than you think, it's just a mental thing" blah blah blah. They're almost always happy to do it and i've never had any tests done... i usually say "a doctor here prescribed it to me before, there were no issues. You know doc, i've read about having flushed/red face and headaches but i dont seem to get any of that" and they just write me a script... BAM
Then i call mirage
EDIT: I use it because it helps me LAST longer... I tend to blow pretty huge loads (sometimes it's ridiculous...) and with V, if i can build up my orgasm for 45-90 mins, however long it takes, the orgasm is intense... plus my cock gets rock-fucking-hard which is great for anal and the girls tend to "salivate" over how big and hard I am... never had a problem. AND i can usually go for round 2 after about 5-10 mins. It makes this hobby a BLAST!