We've previously mentioned that Olympic golden boy Michael Phelps has been spending lots of time in Sin City with a Palms casino COCKtail waitress.

Well, things are getting fairly serious for the swimmer and the HOtel HOstess named Caroline "Caz" Pal, according to reports.

Golden Boy brought 'Caz', pictured above, home to Maryland for turkey day!

Mikey's mommy, Debbie, must love what her little boy dragged home.

Really, Golden Boy?

That's what you're settling for? You have your pick of ladies!

Good luck, though, 'Caz'.

May you fare better than that other Palms HOstess, George Clooney's ex, Sarah Larson.

Ahem, get preggers and you'll be set for 18 years!

Gold diggers from around the world must be getting their head shots/resumes/boob jobs all set for the next Palms job fair!

[Images via TMZ.]