Lisa was a bundle of emotion when she announced her first grandson Flynn's arrival on March 19, 2018.
"My beautiful baby made this beautiful baby. 😊," Lisa captioned an adorable picture of the sleeping newborn.
"Congratulations @morgangruell and Ryan for this little bundle of joy, even though he sleeps most of the time still! 2 weeks old and Flynn is completely adorable 💙💙."
Emphasising the amicable nature of their split, Lisa and her ex-husband Grant Kenny are a constant united front when it comes to their family.
On June 23 2019, the pair reunited for one of many play-dates with their grandson.
"Grannie and Pa having a play with our gorgeous Flynn 💙💙," Lisa penned alongside a photo of the trio at the time.
On November 5 2020, the former swimmer was blessed with a second grandson, Taj. Announcing his safe arrival on Instagram on November 9, Lisa shared a sweet photo of the sleeping newborn in a striped onesie.
"IT’S A BOY💙💙💙💙💙💙," the grandmother-of-two wrote at the time.
"Taj Grant Gruell arrived safely into this world last Thursday, 5th November 2020, 8lb 4oz (for the oldies like me who can relate better to pounds!!)
"A beautiful second son for my Morgan and Ryan and little bro for Flynn .... baby spam coming 🥰 Congratulations Morgan, Ryan and Flynn xxxxxx."
The proud mother and grandmother captured the moment her three boys, including her son Jett Kenny and Flynn and Taj, embraced in a group hug.
"The boys..... 💙💙💙🥰," Lisa penned. "So much cuteness in one photo 🥰🥰🥰 @jettkenny @morgangruell @ryan.gruell xxx."
Cherishing family time, Lisa was overjoyed to go exploring with her daughter Morgan and her sons on May 17, 2021.
"A new walking track on our property to enjoy nature, birds, kangaroos...even a koala sometimes," she captioned a family photo. "A great run for the doggies too 🤗🙏🏻👍🌼 Thanks @mark66andrew 🥰."
In a bittersweet moment, Lisa captured her two grandsons enjoying time in the garden dedicated to her late daughter, Jaimi, on December 7, 2021.
Ending the year with a characteristically sweet tribute to "unconditional love", Lisa posted an adorable shot of herself, Flynn, and Mali embracing in a group cuddle on December 31, 2021.
"The best New Year’s Eve. Surrounded by unconditional love," the former Olympian penned. "That’s a wrap on 2021. Here’s hoping for a brighter 2022. See you next year x🌸💙🥰🐾."
In the lead up to becoming a grandmother-of-three, Lisa shared this touching photo with Flynn and Taj on February 2022.
Planting a kiss on the eldest's forehead and embracing the littlest one, the celeb wrote: "Grannie and her little boo boos. Not long to go and there will be 3! 💙😍💙."
Ever the doting grandma, Lisa paid tribute to her eldest grandson, Flynn, on his fourth birthday on March 6, 2022.
Sharing a series of photos of the birthday boy, including one of him attempting to extinguish some sparklers with his breath, the former athlete wrote: "Flynn is trying so hard to blow out the ‘candles’ . Happy 4th birthday to our little boo boo. We love you little one🥰💙💙💙
"Family is everything."
Lisa relished in granny time over the 2022 Easter long weekend, sharing a series of family snaps on the Sunshine Coast.
"How was your Easter?" she asked her followers. "Mine was so much fun… my heart melts with these little boys 🥰 and my beautiful Momo xx 💙🥰💙."
