I've had lots of guys flirt with me on the internet but only one troubling encounter with another person and sexual innuendo wasn't even a factor. It was simply an instance of a man I knew marginally acting very familiar with me out of the blue. But even that turned out to be a harmless drunken episode. So...
1. Open-faced sexual jocularity isn't necessarily creepy and "innocent" conversation isn't necessarily not.
2. Proceed with caution when you are drunk and if you are unable to then be prepared to deal with some fallout.
We don't know you are drunk. Perhaps open up the night with a disclaimer:
I am drunk. Which may or may not account for some unexpected and/or disturbing interactions with me. 