Christina Aguilera admits to regularly joining the mile high club

Christina Aguilera has admitted to regularly joining the mile high club.

The Dirty singer, 42, who has son Max, 15, with her actor ex-husband Jordan Bratman, 45, and daughter Summer, eight, with her long-term fiance Matthew Rutler, 37, says the couple romp on planes under blankets - but only while other passengers are sleeping.

She said on her Call her Daddy podcast: "A plane can be fun. We've definitely hidden some things under the blankets when the seats are big enough. I can't believe we didn't get caught so many times in so many situations. Thank the Lord.

"On international flights, I turn the light off. There's always room to get creative. I use blankets. It's like, 'Oh, I feel safe with my partner here, like we're just sleeping together'. You've got to wait 'til everyone's like gone to sleep. It's setting the mood."

ALSO READ: 'It's been butchered a lot': Christina Aguilera fought to keep her surname for her career

Christina who has been engaged to Matthew since 2014, added she finds using sex toys on planes a handy stress and anxiety-relieving device.

She said: "I'm not sure I'll be recommending that to any nervous fliers, though.

"I literally remember even having this little pocket-sized one I could pack in my bag on an aeroplane. I was horny. Sometimes it's an anxiety thing, too."

The Genie in a Bottle singer also admitted to having sex over a mixing desk, adding: "There's been some good times, there's like, the studio sound board.

"I've been bent over there a couple of times. It's fun."