The Big ImageBoard (TBIB) - abdominal bulge adult (lore) age difference ambiguous gender anal anal penetration anal vore anthro anthro penetrated anthro pred anus backsack balls big penis 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 huge penis human human on anthro human penetrating human penetrating anthro humanoid genitalia humanoid penis 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 penis sex shirt size difference smaller ambiguous smaller human sound effects speech bubble text topwear toriel undertale undertale (series) url vore young young prey younger ambiguous younger human