The 3D lipo treatment uses non-surgical technologies including Cryolipolysis, Cavitation and shockwave therapy to sculpt the body in a treatment called The Butterfly Effect.
The star wore just a thong as she patiently stood to be painted on her chest and legs with the pink, blue and turquoise colours.
Jess is using the treatments to get ready for her wedding later this year to Love Island co-star Dom Lever.
The shock wedding occurred during their interview with Kate and Jeremy when Richard Arnold showed up and told them he had two rings and asked if they “fancy getting spliced live on Good Morning Britain”.
Jess replied, “You’ve got it all planned, so… yeah,” as they both stripped off and walked down a wonky “budget” carpet, as a crew member put a veil on Jess and gave her a bunch of flowers, and Dom whacked a bowtie on.
Dom’s vows stated that he would “share his life on social media” with Jess because she was “his type on paper”, as he slipped the ring onto Jess’s finger.
The pair said that they’ll also be having a wedding in Mykonos later this year, but for now it looks like they have had a Valentine’s Day they won’t forget.
However they can’t go calling themselves Mr and Mrs yet due to one vital legal issue.
A source told The Sun Online: “The ITV studio isn’t sanctioned for a wedding ceremony, so it’s technically not legally binding.”
Jess and Dom got engaged last September, just months after meeting in the Love Island villa.