rule 34 1boy 6 eyes armpits arms up belly bulge big belly big pecs black hair blush breast sucking breastfeeding cute male demon demon boy demon slayer egg implantation eggs falcon0571 hair down hakama kimetsu no yaiba kokushibo lactation long hair male male male lactation male only male pregnancy michikatsu tsugikuni multiple eyes muscular muscular male oviposition ovipositor pale skinned male pale skin pecs pregnant pregnant male red sclera solo focus spiky hair stomach bulge sucking male nipple sweat tentacle tentacle monster tentacles on male topless topless male two tone hair uterus yellow eyes 5886957