Hi,
I am having a problem keeping and erection during sex. I am taking multivitamins, L-arginine, b12. And omega 3 fatty acids. What would be my soulution to keepig and erection. My girlfriend has started to think that I am messing around with other women. I want to know if there is a supplement or drink that I can take that will keep me at that level. I really enjoy satisfying my partner.