Does anyone know if any pornstar will be offering sexual services at the AVN Expo? I'm going to Las Vegas for the event and I'd love to have sex with a pornstar.

I and others have made extensive posts about how to connect with porn stars at AVN.  Do a search for "AVN" from the past 2 to 4 years on this board. Everything you need to know is there.  

I HIGHLY recommend you start planning and trying to schedule something early.  Its also more convenient if you stay at the host hotel.  Most ladies schedules are rather tight while there, so the convenience of having a room where the event is going on can save a considerable amount of time for them to make something happen.

start planning now for sure

Can you share the link, please? There are about 100 results when I looked up for AVN.