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Hot Hollywood couple Blake Lively and Ryan Reynolds were spotted apartment-hunting in New York.

The 24-year-old "Gossip Girl" actress is looking to buy a luxury penthouse with the 35-year-old "Green Lantern" actor after a whirlwind romance, according to New York Post sources.

HOT SHOTS: Blake Lively

They were spotted checking out a three-bedroom, $4.35 million penthouse on Fifth Avenue.

A source said, "When they were done, she left the building first, wearing tall boots, jeans, coat and fedora and got straight into a town car, and then Ryan exited into the same car. Her little dog was waiting with the driver in the front seat."

The two have been romantically linked since September, around the time Lively split from heartthrob Leonardo DiCaprio and two months after Reynolds finalized his divorce from Scarlett Johansson.