idolmaster, idolmaster dearly stars, portal (series), portal 1
akizuki ryo
kent mame
1boy, autofellatio, bad hands, bad proportions, blush, crossdressing, fellatio, glory hole, greyscale, male focus, male masturbation, masturbation, monochrome, oral, otoko no ko, panties, penis, portal (object), side-tie panties, sketch, solo, sweat, trembling, underwear, wall
commentary request, partial commentary