Is it ok to take viagra for our first time? Do you want/need to know? And guys, did it help? Were you able have sex thereafter with your date without it?

I have no problems having erections by myself but I have performance anxiety with a person. I really really like this person. We had three amazing dates and we made out like crazy and I loved it. I really want it to work when we have our first sex and I am considering using viagra. Is it ok? Do you want/need to know? And guys, did it help? And were you later able to relax and stop using it and have erections without it?

Edit:
I consulted my doctor and I have a prescription. So medically, I am fine taking it.