Skin-to-skin contact is a form of bonding, and the larger the area of skin, the deeper the bond, says Donaldson. What’s more? “Skin-to-skin contact triggers the release of certain hormones associated with pleasure and bonding, [such as] serotonin, dopamine, and oxytocin,” explains Donaldson.

In these images, it’s clear that Millie and Jake’s bond is deeper than skin deep and the lovey-dovey feels are all around. By how much they’re touching, it’s also apparent that one of their main love languages is probably physical touch.

As Millie connects her cheek to Jake’s in one photo, before turning to kiss him and hold his face in the next, “she’s showing her love for Jake through touch,” says Donaldson.