You really aren't going to feel anything except probably a headache and maybe flushing of the skin, unless you actually go about having sex. It doesn't make you horny or create erections without something to stimulate you. No real point in just trying it out without having sex. Even then, if you aren't attracted to the person or your head isn't in the right space, you still may not get a boner. It is not an aphrodesiac, except maybe in a placebo sort of way. But it can make your erection last very nicely