1boy, 1girl, ahegao, amputee, android, barcode, barcode tattoo, brain, breast grab, bright pupils, bzs (kage no shinobu), couch, feet, feet out of frame, full body, grabbing, grabbing from behind, hetero, indoors, joints, legs, mecha musume, mechanical parts, no shoes, open mouth, original, penis, pubic tattoo, purple eyes, purple hair, reverse upright straddle, robot, robot joints, sex, sex from behind, short hair, straight-on, tattoo, testicles, thighhighs, toenails, toes, tongue, tongue out, vaginal, veins, veiny penis, white pupils, white thighhighs