machi (machi0910), neneg, firefly (honkai: star rail), honkai: star rail, honkai (series), animated, animated gif, artist collaboration, commentary, commentary request, english commentary, live2d, looping animation, mixed-language commentary, 1boy, 1girl, black hairband, blue eyes, blush, breasts, breasts apart, censored, collarbone, erection, fellatio, gradient hair, green hair, grey hair, hair between eyes, hairband, heart, hetero, indoors, large breasts, large penis, looking at viewer, mosaic censoring, multicolored eyes, multicolored hair, nail polish, nipples, nude, oral, penis, pov, purple eyes, purple nails, sweat, two-tone eyes, veins, veiny penis