Justin Timberlake, Jessica Biel Singer/actor Justin Timberlake and actress Jessica Biel at the U.S. Open tennis championships in New York, Sept. 9, 2013. The couple is now rumored to be expecting their first child. Photo: Reuters

Jessica Biel’s latest outing is adding fuel to rumors that she may be expecting her first child with singer/actor Justin Timberlake. The film star was spotted sporting what some fans believe might be a possible baby bump while hiking with the “Mirrors" performer in New Zealand last week.

According to a report from Us Weekly, Biel, 32, sported a “loose-fitted top,” during her and Timberlake’s hike Wednesday and reportedly “kept close” to her singing beau who is currently on tour overseas. Their outing, which was also attended by several friends of the couples, occurred just days before their two-year wedding anniversary Oct. 19.

One day prior to their highly-publicized excursion, Timberlake, 33, shared a rare shot of himself posing with Biel on Instagram. “Life moves pretty fast. If you don’t stop and look around once in a while, you could miss it,” captioned the singer’s “Ferris Bueller’s Day Off”-inspired post. The image showed Timberlake sitting on a bench with his arm around Biel as they overlooked New Zealand’s coastline.

While Biel and Timberlake have yet to confirm or deny rumors that they’re expecting, fans of the couple have already taken to social media to speculate that the couple might soon be parents following their Oct. 15 hike.

According to a report from OK magazine, fans are spot-on about Biel’s alleged baby bump.

“Close friends are buzzing that she’s pregnant,” an insider told the tabloid Wednesday. “Jessica hasn’t been going out lately with the excuse that she’s not feeling well, but she’s so healthy and she never gets sick.”

Biel first sparked pregnancy rumors after she was seen sporting what appeared to be a burgeoning bump while strolling on Bondi Beach in Sydney, Australia, Oct. 4. The former "7th Heaven" actress previously spoke out about her desire to start a family with Timberlake in 2012, telling InStyle magazine (via PopSugar) that she planned to raise her future children in her home state of Colorado.

“I would like those little people to have the experience I had, in some capacity. It was fun," she said.