Yep, this is real. The Wine Rack is a sports-style bra, which features a boob-enhancing polyurethane bladder. You can fill it with a beverage of your choice, which you can then drink through a plastic tube.
The product is already sold out over at Firebox.com.
This product has the dual benefit of making your breasts look larger while simultaneously letting you get drunk while still saving money at the bar. Plus, if your male target for the evening is drinking at the same pace as you, by the time you finish the booze stashed in your breasts, he should be getting just drunk enough to no longer be aware that your chest size has shrunk from a C to a B cup.