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4:5 alien alien_humanoid biped black_hair blue_collar bodily_fluids breast_grab breasts collar collar_only duo eyewear eyewear_only female female_on_human female_penetrated glasses glasses_only grey_body grey_skin hair hand_on_breast heartszora hi_res homestuck horn horned_humanoid human human_on_humanoid human_penetrating human_penetrating_humanoid humanoid humanoid_penetrated interspecies john_egbert male male/female male_on_humanoid male_penetrating male_penetrating_female mammal ms_paint_adventures nipple_fetish nipple_piercing nipple_pinch nipple_play nipples not_furry nude nude_female nude_human nude_humanoid nude_male penetration penile penile_penetration penis_in_vagina piercing pinch rectangular_glasses sex sweat terezi_pyrope troll_(homestuck)vaginal vaginal_penetration wearing_glasses