Taylor Swift and Calvin Harris are reportedly getting steamy as their relationship also got a stamp of approval from the "Blank Space" singer's BFF.

In a new report from Hollywood Life, Taylor Swift apparently believes that Calvin Harris is the perfect man because he is a combination of all her past boyfriends.

"He's like the best parts of her exes all wrapped into one. He has the sexually chemistry of John [Mayer], the charm of Harry [Styles], the heart of Jake[Gyllenhaal] and the body of Taylor [Lautner]," the source said.

And that chemistry allegedly extends to the bedroom where Taylor Swift and boyfriend Calvin Harris reportedly couldn't get enough of each other.

A source alleged, "[Calvin] comes over and they will stay up talking, and may even start watching a movie-but things get steamy pretty quickly. Neither one of them are getting much sleep as they stay up till 4, 5 in the morning getting it on. If they don't have work they sleep in, eat and then go at it some more."

Reportedly, the "Blank Space" hit maker thinks that the "Summer" singer "is so incredibly sexy."

"She thinks he's by far the sexiest man she's ever been with. They only one who came close was John Mayer but she was such a kid back then she didn't know what she was doing," the source said.

"Now that she's older, she really loves being intimate with a man like Calvin. He makes her feel so beautiful and attractive."

Meanwhile, Taylor Swift's BFF Jamie King fully supports her relationship to Calvin Harris.

During an interview with E! News at the Christian Dior documentary "Dior and I," Jamie King said of Calvin Harris, "He's a wonderful man. He's a beautiful man."

The whirlwind romance reportedly started in February this year when Taylor Swift and Calvin Harris attended the BRIT Awards.