The Big ImageBoard (TBIB) - ambiguous gender ambiguous penetrated ambiguous penetration anthro anthro on anthro anthro penetrated anthro penetrating anthro penetrating anthro arms tied ass up bdsm big dom small sub biped blue eyes bondage boss monster (undertale) bound bovid breasts butt butt grab caprine cat o' nine tails chromapan cleavage clothed clothing crossgender dialogue digital media (artwork) dominant dominant gynomorph dominant intersex duo english text eye roll feathered wings feathers floppy ears from behind position fti crossgender fur gynomorph gynomorph/ambiguous gynomorph penetrating gynomorph penetrating ambiguous hair half-closed eyes hand on butt hands behind back hi res holding object horn inner ear fluff intersex intersex/ambiguous intersex penetrating intersex penetrating ambiguous interspecies larger gynomorph larger intersex leotard light body light fur long hair looking at another mammal mature anthro mature gynomorph mature intersex multicolored body multicolored fur narrowed eyes nicoya open mouth paddle pale fur patreon penetration pink nose purple body purple fur red eyes sex signature size difference smaller ambiguous smaller penetrated smug submissive submissive ambiguous text toriel tuft two tone body two tone fur undertale undertale (series) url whip white body white fur white hair wings