The Big ImageBoard (TBIB) - aircraft al (mastersharkplane) anal anal penetration anthro anthro on anthro anus balls bdsm being watched blush bodily fluids bondage bottle bound cardiac monitor clipboard container cuff (restraint) cum cum while penetrated doctor doctor's office dominant dominant anthro dominant female doorway duo focus erection exposed female fully bound genital fluids genitals glans group helpless hi res humanoid genitalia humanoid penis immobilization inside leather cuffs legs tied living aircraft living machine living vehicle looking at another looking pleasured lying machine male male/female measuring medical medical instrument milking machine miranda (he4dhunter) neck tied nude number object in ass object insertion on back open mouth pen penetration penile penis penis milking propeller restraint device restraints scientific instrument sex toy sex toy in ass sex toy insertion spread legs spread wings spreading strapped down straps submissive submissive anthro submissive male sweat taking notes text tongue tongue out valravnconcorde vehicle window wings wings tied