Katy Perry, 40, goes braless in see-through leotard on pal Lauren Sanchez’s hen night

SINGER Katy Perry looks orbit underdressed as she pops out on rocket pal Lauren Sanchez’s hen night.

The pair — part of last month’s all-female Blue Origin space jaunt set up by Jeff Bezos — teamed up again ahead of Lauren’s wedding to the 61-year-old Amazon billionaire.

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Katy, in a sheer leotard and mesh skirt, and Lauren, 55, were joined in Paris by reality star Kim Kardashian, 44, and Desperate Housewives actress Eva Longoria, 50.

They were photographed leaving their swanky hotel for a cruise on the Seine.

Luckily, 40-year-old Katy is now used to a big launch.

Last month Katy was reportedly regretting her behavior on the Blue Origin spaceflight.

The launch was touted as a powerful message of female empowerment as it sent six women into space in an 11-minute trip.

But it sparked fierce criticism over its jaw-dropping price tag, environmental impact, and the "over the top" behavior of its star-studded crew once they touched down.

Perry was joined joined Gayle King, Lauren Sanchez, NASA rocket scientist Aisha Bowe, film producer Kerianne Flynn, and activist Amanda Nguyen on the Jeff Bezos-funded flight.

And she is now reportedly having second thoughts — not about the mission itself, but how it all played out.