Actually there are a Yukkuri Aya face on a Cirno, a Yukkuri Cirno next to a panting Cirno, two Yukkuri Marisas covering Cirno's crotch, a Yukkuri Cirno face on a Cirno's Body and a Yukkuri Reimu being hugged by a Cirno taking a shit.
I guess that feeling of mind rape and repugnance which some people experiment when seeing this picture, including me, is a good representation of how would a psychic feel when reading a pedophile's mind.