Celebrity Kate Hudson Shows Off Her Amazing Abs While Partying with Nick Jonas Again The actress rocked a cutout jumpsuit while party-hopping across N.Y.C. Thursday night By Andrea Park Published on October 16, 2015 12:55 PM Share Tweet Pin Email Photo: We Dem Boyz/Splash News Online Between her killer abs and new rumored flame, there are plenty of reasons to be “Jealous” of Kate Hudson. After attending a charity event Thursday night, the actress changed into a sexy cutout jumpsuit and went to New York City’s Up & Down nightclub, where rumored beau Nick Jonas was also hanging out. The Fabletics founder’s skin-baring black jumpsuit showed off her incredible abs, super toned arms and generally age-defying physique. She paired the jumpsuit with matching open-toe, platform heels and a small black clutch. Jonas stepped out in a red hoodie sweatshirt, black jeans and white sneakers. Hudson, 36 and Jonas, 23, first incited rumors of a relationship in late September, when they spent a magical day together at Disney World. However, a source close to Hudson told PEOPLE that it was “just a fling” and “definitely not anything serious.” The source continued, “They are both single and seeing other people too. Kate’s mostly focusing on her boys and doesn’t want a serious relationship right now.” The actress has been single since ending her engagement to Muse frontman Matt Bellamy at the end of 2014, and Jonas split from his girlfriend of two years, Olivia Culpo, in June. Nick Jonas Shuts Down Question About Kate Hudson Romance Rumors: ‘I Keep Some Things to Myself’ “I’m definitely dating and hanging out,” the Scream Queens actor told PEOPLE earlier this month. “I am single, but I’m hanging out with people and just getting to know people and enjoying seeing what’s out there.” Hudson is undoubtedly taking a similarly casual approach to dating: She has had an extremely busy year. Besides raising her sons Ryder, 11, and Bingham, 4, Hudson has also been promoting her Fabletics athleticwear line and filming several movies.