Many are chiming in on what's the real story behind the sudden split of One Direction member, Harry Styles and Taylor Swift, but one main reason could be their incompatibility when it comes to sex.

A new insider close to the ex-lovers has revealed that one main reason why Harry chose to move on was Taylor's lack of interest to "put out." It sounds like a problem older couples experience, but it seems that Harry's fame has gotten into his head.

"While it was clear she obviously had a thing for Harry, Taylor didn't want to put out as often as he would've liked. Harry is a young boy, with ladies throwing themselves at him and has had a string of relationships with older women. It's no secret he's sexually active and is enjoying his fame at the moment. But Taylor just wasn't up for it as much as he is. They were sexually incompatible." reveals the source as reported by The Atlantic Wire.

Taylor recently posted in her Twitter account that she is back at the studio recording songs. Could she be recording the freshly-written Harry Styles break-up songs?

"Back in the studio. Uh oh..." Tweeted Taylor on Jan. 11.

Taylor Swift's tweet last Jan. 11

Being the sweet and amicable star that she is, Taylor preserves her sexuality to protect her reputation, since she has many young female fans all over the world.

"Taylor is so concerned that the public will think she's a wh*re because she dates around, that she doesn't put out." added the insider.

Another reason is their complete lack of similarity when it comes to their interests. Taylor is known to be a country girl who loves the simpler things in life. And someone like her could be boring for the savvy, ultra-modern Harry who likes to go out.

"Harry wants to go out to fancy bars and clubs and enjoy being young - but Taylor's more of a homebody and all she would talk about was antiques," further spills the source.

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