Mad Men actress January Jones radiated natural beauty as she stripped down to a tiny bikini which emphasised her bulging cleavage.The mum-of-one flashed her pearly whites to her one million Instagram followers as she flaunted major underboob in her sultry snap.January, 42, who starred as Betty Draper between 2007 and 2015 worked her incredibly gym-honed physique in a close-up selfie of her cleavage and mid-riff.Jon Hamm's co-star paired her plunging bikini with a Virgo zodiac pendant necklace, which features a figure riding a unicorn.Ensuring her ocean blue peepers were protected from the West Coast sunshine, she rocked a pair of oversized brown retro sunglasses.The blonde bombshell aptly captioned her sultry Instagram grid post: "Making.
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