2boys, absurdres, anilingus, antennae, belt, black_belt, blue_pants, blue_shirt, bulge, closed_eyes, crab, crab_claw, erection, erection_under_clothes, furry, furry_male, furry_with_furry, half-closed_eyes, highres, male_focus, mr._krabs, multiple_boys, oral, pants, plankton, plankton_(spongebob), saliva, shengtian, shirt, spongebob_squarepants_(series), tongue, tongue_out, what, x-ray, yaoi