rule 34 after sex after vaginal alloyed construct amphibian anthro axolotl blue body bodily fluids construct cum cum in pussy cum inside gy style duo erection female femalefemale feral fingering fish from behind position gameplay mechanics genital fluids genitals group group sex interspecies machine male malefemale malemale marine masturbation mechanical penis mole salamander monster monster girl genre monster train morsel orgy penis robot salamander amphibian sex size difference smile smoke stygian guard tethys titansbane umbra disambiguation 7731971