Final <serious> piece of Vegas Advice: the cops have a degree of tolerance towards escorts although guys can & do get arrested every night there on solicitation etc..but generally as a foreign national ( unless you're Padraig Harrington ;-> ) 95% of time you'll just get a verbal kick in pants & told to fuck off home...
but (akin to many US Cities),the LVPD has a zero tolerance policy regarding narcotics.. so if your lady friend is blazing a J..you could spend a couple of days in a cell..& when you get back to scary Eire.. you won't be coming Stateside again for quite some time..just saying!