Not For Science!

General: abs 1152 anal 4334 anal penetration 3911 anthro 8645 anus 5221 balls 6861 bdsm 1025 biceps 492 bodily fluids 9236 bondage 828 bound 1244 butt 6591 comic 5132 cum 7455 cumshot 2423 digital media (artwork) 4868 dildo 713 dominant 2412 dominant male 1046 duo 8275 ejaculation 4407 english text 7634 erection 6121 forced 2005 forced orgasm 125 fucking machine 58 genital fluids 8457 genitals 9354 hi res 9062 internal 2534 machine 402 male 8825 male/male 3176 male penetrated 2637 male penetrating 5781 male penetrating male 2193 milking machine 70 multiple scenes 1578 muscular 1860 muzzled 84 muzzle (object) 133 orgasm 4047 pecs 913 penetrable sex toy 133 penetration 7892 penile 6997 penis 8471 penis milking 87 scientific experiment 20 sex 8187 sex toy 1198 solo focus 2276 submissive 1811 submissive male 1085 text 8272 tied down 5 toying partner 187