OP you should try out horny goat's weed. I believe thats what its called. It's at GNC. they have other things you can grab to help you with that problem other than viagra dood. my cousin had mad problems with that shit. But them products helped out. and limp dick cumshots would be hilarious
You could always try buying it online and just skipping the trip to the doc since you'd have to pay full price for the Viagra anyway...