A Pennsylvania couple went in for an ultrasound and ended up with a rare and precious photo: Their twin daughters kissing in the womb.

Carissa Gill of Croydon, who is 24 weeks pregnant, went to Fetal Vision Imaging in Levittown with her boyfriend Tuesday to get an ultrasound.

Congratulations Carissa and Randy with your kissing twins! Thank you for coming to Fetal Vision, we hope you enjoyed your experience with us! #FetalVision #KissingTwins #HDUltrasound www.FetalVisionImaging.com

A post shared by Fetal Vision (@fetalvision) on Apr 4, 2017 at 5:14pm PDT

Gill said she was surprised to discover the ultrasound image captured by the business showed the twin girls, named Isabella and Callie, kissing while snuggled up together in her womb.

“Pregnancy is a beautiful thing to capture, especially when you get to see moments like this,” Gill told WTXF-TV.

Fetal Vision Imaging posted a photo of the parents posing with the ultrasound image to Instagram.

“Congratulations Carissa and Randy with your kissing twins! Thank you for coming to Fetal Vision, we hope you enjoyed your experience with us!” the post said.