But the story behind it is so much more. The shots - which have gone viral after their photographer shared them on social media - depict a same-sex couple, and while one mummy carried the twins, her wife has induced lactation so that they can both nurse their babies.
Jaclyn Pfeiffer, 34, and her wife Kelly, 37, had, like many same-sex couples, a hard road to parenthood, telling Yahoo that they began trying to conceive at the beginning of 2016.
MELISSA BENZEL
Kelly says both mums being able to breastfeed is "so surreal."
Initially the plan was for Jaclyn to carry their children, but she was unable to get pregnant. They discovered that this was due to polycystic ovarian syndrome (known as PCOS) and polyps.
They then decided that Kelly would try getting pregnant instead, but the journey was far from over, as she explained:
"To conceive our twins, it took: two years and nine months, five intrauterine inseminations at home, two intrauterine inseminations in the doctor's office, one hysterosalpingogram, two saline sonograms, two polyp removals, 15 fresh inseminations, four IVF consultations, 18 monitoring appointments, four egg retrievals, two fresh embryo transfers, three frozen embryo transfers, one cancelled cycle, 58 eggs retrieved, 25 embryos pre-implantation genetic screening tested, 17 embryos PGS normal, one chemical pregnancy, 377 injections, countless negative pregnancy tests and one emergency c-section," Kelly said.
MELISSA BENZEL
Jaclyn and Kelly spent two years and tens of thousands of dollars trying to conceive.
She added that they spent around US$21,000 (about NZ$31,600) on the process.
The couple finally welcomed their twins, Jackson and Ella, in May.
Each woman contributed an embryo to the pregnancy, so the twins are technically half-siblings.
MELISSA BENZEL
Jaclyn, left, is able to breastfeed thanks to hormones and pumping, despite not having been pregnant.
Having gone through such a gruelling and emotional journey, both women wanted to be as active a parent as they could be with their infants - which included breastfeeding.
When they began trying to conceive, Kelly said, the couple had never heard of induced lactation.
The process, which involves a woman taking hormones that mimic the final months of pregnancy in a woman's body, as well as using a breast pump in advance of baby's arrival, allowed Jaclyn to breasfeed as well.
MELISSA BENZEL
Jaclyn and Kelly Pfeiffer are a same-sex couple who are both breastfeeding their twins after Jaclyn brought on induced lactation.
"Being able to breastfeed our children together is surreal and we love it," Kelly said.
