Yes. With your girlfriend

Your girlfriend is very kinky and likes to play with fire. She tells you that nobody gets hard with 100mg of anti-viagra, so you shouldn’t be a pussy and just have some fun. You‘ll always think about how hot and dangerous this was after its over.

And if she notices that you actually do get hard, she will just stop. You trust her right?

Or are you so confident that you want her to give it all she got?