The Big ImageBoard (TBIB) - age difference anal anal juice anal penetration anthro anthro on anthro anthro penetrated anthro penetrating anthro penetrating anthro armpit hair asgore dreemurr asriel dreemurr (god form) avian balls beard belly big breasts bird bisexual bisexual sandwich bisexual train black markings blonde hair blue body blue feathers bodily fluids body hair boss monster (undertale) bovid breast grab breasts caprine darkriallet eyewear facial hair father (lore) father and child (lore) father and son (lore) feathers female female penetrated floppy ears foursome genital fluids genitals glasses group group sex hair hand holding hand on breast hand on butt hand on shoulder hi res horn huge breasts incest (lore) inside john (jackdoujinshi01) kissing kneeling living room long ears lying male male/female male/male male penetrated male penetrating male penetrating female male penetrating male mammal markings mature male mother (lore) mother and child (lore) mother and son (lore) nipples nude older anthro older female older male older penetrated on back on side oral oral while penetrated oral while penetrating overweight overweight female overweight male parent (lore) parent and child (lore) parent and son (lore) penetration penile penile penetration penis penis kissing pussy sandwich position sex son (lore) spread legs spreading submissive submissive male toriel train position undertale undertale (series) vaginal vaginal fluids vaginal penetration white body younger male