I'm going to Vegas for a convention next week and would like to fulfill a fantasy of mine.  I want to have a threesome with two girls.  I'd also like to videotape it if possible.  Is this something that can be done, or am I way off base?  I don't want to insult anyone or break any etiquette

Threesome is easy to setup. Many providers also have friends that will join in on the fun. Video...that's going to be more difficult. I know one provider who encourages it (ex-Porn star, doesn't care about being videotaped). But most will not let you. Of course money talks and there's always a price, but it's probably going to be a big price.

Contacting these ladies:  Kit, LaRue, Kiwi Girl, and or maybe Arden Moon.   This could be a YMMV thing, but I would start with them.

Let me know if anyone catches your eye, then we can chat

Me and my girlfriend porn star jameen lafleur have done this before and can help you

100 Proof of Las Vegas is a highly reputable agency and both Kenna Kane and Nyomi Star offer what you seek. And neither are strangers to the camera, each having worked in porn. I have seen them both and they are outstanding. I have done video dates with Kenna twice and it is a memory that lives on forever. The beautiful thing about having two girls is one of the girls can hold the camera for an up-close view of the action, or you can hold it, or you can use a stand to get all the action. One piece of advice....eat your wheaties that day cuz you are gonna need all the energy you can muster up!

I'd be totally into it sweetie, have several friends to call on and we are all camera friendly

I have gfs to join and love to be video taped like me👍