Money can't buy love, but it sure comes in handy in demonstrating it. Case in point: Kim Kardashian's sweet birthday gift for Kanye West. What did the reality starlet bestow upon her boo?

None other than a freakin' Lambo! Instead of the Murcielago, which Yeezy already owns (it supposedly inspired his 'Mercy' single with G.O.O.D. Music), K.K. plunked down a cool $750,000 for a black, two-door Lamborghini Aventador LP 700-4. That's amore, kids!

We wouldn't expect anything less from the fashion-conscious couple. West is apparently treating K-Dash to free styling services (as if she needed them -- but it's not like he needs another ride, either).

Unfortunately, Kim wasn't able to gift Ye with the wheels directly, though, since he's still on the European leg of his Watch the Throne tour with Jay-Z. However, she did find a way to surprise him (that is, unless he read TMZ already). Kimmy took a video of the whip and will personally screen it for West at his tour stop in Ireland. Kute!