Barton, who was born in 1949 and is one of the oldest Republicans in Congress, issued a formal apology after a naked photo of him emerged on Twitter.
The self-proclaimed "strong conservative" acknowledged that the picture was genuine and confirmed that he took it himself to win over women.
In a public statement, Barton explained that after his second divorce, he had engaged in sexual relations with a number of "mature adult women".
"While separated from my second wife, prior to the divorce, I had sexual relationships with other mature adult women".
The lewd photo was published by an anonymous Twitter user, who shared Barton's naked picture next to the text.
"I want you soo bad. Right now. Deep and hard", the text read.
Speaking to the Washington Post on conditions of anonymity, the woman, who met Barton on the Internet, revealed further details about her relationships with one of the Republican Party's most senior figures, though she denied leaking the photo.
She said that her relationships with the Congressman lasted for over five years, and they engaged both physical intercourse and sexting, including a self-made clip of Barton masturbating.
READ MORE: When 'Sexting' on Social Media Goes Seriously Wrong
The two broke up, however, when the woman found out that Barton was having sexual relations with a string of other women, whom she then contacted.
"It's not normal for a member of Congress who runs on a GOP platform of family values and conservatism to be scouring the Internet looking for a new sexual liaison," the woman said, explaining her decision to speak with the media.
"Today, the Capitol Police reached out to me and offered to launch an investigation and I have accepted. Because of the pending investigation, we will have no further comment."
Barton's spokesperson stated that the sexting Congressman will not be stepping down, though the public took to Twitter to call out Barton for his behavior.
Joe Barton 2018 campaign collateral out now.. pic.twitter.com/9RwDZ5atlO
— Rich (@rpwestcott) 23 ноября 2017 г.
Guess everything isn’t bigger in Texas after all…am I right Joe Barton?? 😂 #JoeBarton pic.twitter.com/BWorRPkETo
— vanessa (@mommyinbklyn) 22 ноября 2017 г.
Why did I click the Joe Barton trending topic 😩😭 pic.twitter.com/Gj1Ix5pTyx
— David Lamar (@ImDavidLamar) 22 ноября 2017 г.
Sees #JoeBarton pic.
— Victoria Brownworth (@VABVOX) 22 ноября 2017 г.
Gives thanks for being a lesbian.pic.twitter.com/3GMHOdooeF
Hey, why is everyone talking about congressman Joe Barton?
— St Navajo (@raymondjuan) 22 ноября 2017 г.
Whoa, Nevermind! pic.twitter.com/uJqv2v5pkE
joe barton… 100% rating from the christian coalition and the family values council..
— nottrump (@not_the_potus) 22 ноября 2017 г.
Busted for sending dick pics to a woman not his wife…
typical hypocrite#JoeBarton