between buttocks

Kris, Noelle Holiday (Deltarune, Toby Fox (Copyright)) by Anothercat

Makima (Chainsaw Man), Striderscribe (Chainsaw Man) by Anybrody, Lulu-Chan92

Doctor Octopus, Olivia Octavius, Uzumaki Naruto (Marvel Comics, Naruto Shippuden) by Castleart

Jinshi, Maomao (Kusuriya No Hitorigoto) by Thegoldensmurf