Take a pen or fork and jam/poke it at the top of the can where the tab is connected to the top of the can. See diagram below:
[![Steps to open a coke can without bees getting in][1]][1]


  [1]: https://i.sstatic.net/8Fz4G.png

I done this almost my whole life, it look like it would be hard to drink from, but it is really easy kind of like drinking from a sports bottle nozzle. Also if you are feeling a bit adventurous, aim it an arms distance away from our mouth and start shaking it.( or aim it at someone else) 

Therefore, in conclusion, your bee problem is solved and you have a funner and cooler way of drinking soda :D