Jenny McCarthy's lookalike older sister stuns fans with her youthful appearance

Jenny McCarthy isn't the only one in her family with striking good looks and a wicked sense of humor. 

The star took to Instagram on Wednesday to wish her older sister, Lynette, a happy birthday and fans were bowled over by not only how similar they looked but how youthful her sibling appeared. 

Jenny, 51, teased Lynette in a cheeky post in which she shared a video of her sister fooling around at a party. 

The Masked Singer judge captioned the clip: "Happy birthday to my equally crazy sister @lynettemcphoto. You make 70 look so good. Hope your next year is even better. (If you make it to 71) #happybirthday #olderbutsexier#sagatarius."

Lynette is far from 70, and is believed to be in her mid 50s rather than hitting her seventh decade. 

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Jenny's social media followers couldn't wait to chime in with many not realizing that she was joking about her sister's age. 

"This chick is not 70," wrote one, as another confirmed: "You are correct. She's in her 50s," while a third added: "Wait 70? Absolutely no way, she looks late 40s at most," as a fourth quipped: "No way she’s 70!! Absolutely stunning."

While Jenny has carved out a career in acting and hosting, Lynette is a photographer. One look at her social media pages and it's clear she also has a great sense of humor, like her younger sister. 

She's shared several photos alongside Jenny, and got the chance to photograph her in a national campaign recently. 

Lynette posted a fun snapshot with Jenny showcasing her trim physique in a black bikini with her sibling fully clothed by her side. 

She wrote: "I, unfortunately, posted this before Jenny’s campaign kicked off and had to temporarily take it down. Second time’s a charm so here I go again! Special shout-out to my sister Jen for giving me the opportunity to photograph her for a national campaign. It was such a great day with a wonderfully supportive crew," she then teased: "I’m on the right in case you missed me."

Over the summer, Jenny wowed fans when she reunited with Carmen Electra for a Skims campaign which saw them strip down to tiny string bikinis. 

She revealed her secrets to her flawless physique with an Instagram caption that accompanied a photo from the campaign."A little BTS from our @skims photoshoot with @carmenelectra. That high heel class I took really paid off. #summervibes #bikini."In an additional comment, Jenny added: “@crystalsflips @airsculpt plus 45 min cardio 3 x a week. Weights 3 a week." 

The Scary Movie actress previously revealed that her fitness journey lies in her commitment to a balanced and nutritious diet. 

Emphasizing fresh fruits, vegetables, lean proteins, and whole grains, she opts for clean, unprocessed foods that nourish her body while avoiding unnecessary calories and unhealthy additives.

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