Normally cuddling is more, uh, cushiony and soft and not so—um, skeletal? Well, if you want to put the uglies into PG-rated bumping uglies, these x-ray portraits of cuddling couples from Saiko Kanda and Mayuka Hayashi of Musashino Art University do just that.

Created using a CT scanner and an X-ray machine, the students won a Mitsubishi Chemical Junior Designer Award for this very interesting, slightly disturbing work. "X-ray images usually show the finite nature of our bodies composed only of matter," say the duo. "But these couples portraits reveal a pulse that isn't normally seen." Deeeeeeeep.

[h/t Laughing Squid, Spoon & Tamago]