Rule 34 Dev - armpits arms_up blue_eyes choker erect_penis erection fffff0_0 helix_piercing honkai:_star_rail laying_down leaking_anus luka_(honkai:_star_rail) male male_only mechanical_arm muscular muscular_male naked nipples nude prosthetic_arm red_hair scars solo solo_male sweat sweaty|10042894560