abs anthro athletic athletic_anthro athletic_female bdsm beak bikini blood bodily_fluids bondage bound breasts cloacal cloacal_penetration clothing cuff_(restraint) erection female forced fucking_machine machine moan navel nipple_outline panties penetration rape restraints solo spread_legs spreading sweat sweating_profusely swimwear underwear vaginal vaginal_penetration birdovo avian bird falcon falconid hi_res
Endurance training.