I’m guessing my regular had a satisfying time with me today.  She quickly grabbed her e-cigarette and whispered, “Yes”!!!  Has anyone try e-cigarette with a k-girl?  Does it prolong the experience after you have cum?

https://www.theelectroniccigarette.co.uk/blog/vaping-after-sex/

So really, not sure what answer you were looking for here. If its a vape with weed, you will likely get high. If it's nicotine, you might get nicotine effects and so on.

 
You're just vaporizing things instead of combusting.  

Now, have I hit the vape with a kgirl? Yes. Was it anything special? No... ie if a cig tickles your fancy, ecig is similar. Etc.