Anything Martha Stewart can do, Barbara Corcoran can do just as well ... 'cause the "Shark Tank" star just had her own makeshift Sports Illustrated swimsuit photo shoot -- and she looks fantastic!!
The 74-year-old real estate mogul and businesswoman threw on a white one-piece suit and orange cover-up to recreate her friend's new S.I. cover that was revealed this week ... captioning the pic, "I can’t cook, but I sure can swim. @si_swimsuit @marthastewart48."
The responses have been nothing but positive .