The Big ImageBoard (TBIB) - adult (lore) age difference ambiguous gender anal anal penetration anal vore anthro anthro penetrated anthro pred anus backsack balls boss monster (undertale) bottomless bovid breasts butt caprine child clothed clothing comic crossgender dialogue digital drawing (artwork) digital media (artwork) duo english text frisk (undertale) fti crossgender genitals gynomorph gynomorph/ambiguous gynomorph penetrated hi res human human on anthro human penetrating human penetrating anthro internal intersex intersex/ambiguous intersex penetrated interspecies james howard larger anthro larger gynomorph larger intersex larger penetrated mammal monochrome older anthro older gynomorph older intersex onomatopoeia penetration sex shirt size difference smaller ambiguous smaller human sound effects speech bubble spread butt spreading text topwear toriel undertale undertale (series) url vore young young prey younger ambiguous younger human