The notoriously private couple have been dating since around October last year, but have remained tight lipped on their romance.
But Jessie J opened up to The Times of London, saying: “Chan and I got photographed before our relationship was even a thing and that created such pressure.”
She revealed the couple recently enjoyed their first holiday together, but declined to give any more details.
“We’ve needed time to get to know each other,” she said. “We’ve just had our first holiday together, which was wonderful, but that’s all I’m saying.”
Asked what qualities she looks for in a man, she replied: “I always look for a guy with a good sense of humor and good morals. And hygiene. A man who showers is very important.”
Tatum recently posted a naked picture of himself in the shower after he lost a bet with the Price Tag singer during a game of Jenga.
“I lost a game of Jenga to Jessica Cornish,” he wrote on Instagram. “The loser (me) had to post a picture the other person (Jessica Cornish) picked... Smh and fml... I’m never playing Jenga with her ever again.”
Jessie made clear her appreciation for the post, telling Tatum “sharing is caring”, before adding a fire and heart-eyes emojis.
The pair first made headlines after Jessie was spotted showing her support for the star at his Magic Mike Live show in London last year. He was also pictured at one of her gigs in London.
She last week broke her silence on their relationship, saying she is “very content with life”.
Quizzed on her love life by Dan Wooton on Lorraine, Jessie J laughed and said: “No comment. I am just very content with my life. Everyone deserves happiness.”