Hold the penis or glans in mouth.

Generally speaking, only furries can do this, because this pose need a triangular mouth to have enough area.

But if the human is slit-mouthed, there will be no problem.

PENIS_BITTEN_IN_MOUTH

GLANS_BITTEN_IN_MOUTH

SHARP_TEETH

SPIRAL_TONGUE,TONGUE_WRAPPED_AROUND_PENIS

not work, in theory, there will be a tongue wrapped around the penis