Anytime I go on a trip with a gal I always stack viagra & cialis. Now I always throw HCGenerate into that stack for even more dramatic results, IT MAKES A DIFFERENCE! I did get seriously concerned one time tho. We started round 4 that night about 5am, lasted 15-20 min. Afterwards My erection wouldnt go down. We were both heavily spent. It took another 35-40 min for it to go down & that was after we were finished & were just laying there not doing anything. She was at a loss for words, said you're worse than an 18yo. She kept reaching over there checking it & saying what the hell is wrong with u? I was 46 then lol, she was 35. Thank goodness for chemical enhancement of all kinds!!! I just wish that damn viagra wouldnt turn my face so blood red. Its very noticeable.