"Snookini time," she captioned the sexy snap. Nicole, 31, left little to the imagination in her line of lingerie from The Snooki Shop.
Fans were blown away by her post-baby snapback in the comments section.
"You did NOT just have a baby!" one fan wrote. "You look incredible!"
Nicole welcomed Angelo with husband Jionni Lavalle on Thursday, May 30.
Angelo joins older siblings Giovanna Marie, 4, and brother Lorenzo Dominic, 6, in their growing family.
Her Jersey Shore costar Deena Cortese became a mother for the first time on January 5, 2019, when she and husband Christopher Buckner welcomed their son CJ.
What are your thoughts on Nicole's post-baby snapback? Sound off in the comments!