bed black_hair blanket blush brothers closed_eyes dragon_ball dragon_ball_z drooling fingernails from_above full_body indoors lowres lying male_focus multiple_boys navel open_mouth outstretched_arms pillow pinki_(shounenkakuseiya) saliva saliva_trail shaded_face shirt short_hair shorts siblings sleeping sleeveless son_gohan son_goten spiked_hair stomach tank_top white_shirt