One of the first places I hit up when I arrive in vegas but beware.. ..I went here a day before my birthday with plans to stay up late and go out. However I went to fat tuesday instead, and had one of their slurpees with a shot of everclear in it, where you pull the test tube out (already a shot of everclear IN the slurpee). I ended up almost blacked out at the newly opened urban outfitters store, bought some betsey johnson jewelry, stumbled back to my hotel, passed out, and woke up on my birthday hungover and hardly able to party that night haha.
But everything is yummy for alcoholic slurpees with shots. Just do it in moderation and your boyfriend will be happy to have the alcohol when you drag him along to go birthday shopping.