Chara from undertale, (Chara's sweater), Chara appears with a long-sleeve neon green sweater with a single horizontal cream stripe, Chara has cream skin, brown medium-length hair with side-swept bangs, and rosy cheeks, (black eyes), (red round pupils), 20 years old, beatiful small body, small ass, nude from the bottom, (vagina), (shaved pussy), Frisk from undertale, ((Frisk's face stoic expression)), (Friks's eyes), ((Frisk closed eyes)), (Frisk's sweater), ((Frisk's long-sleeve light blue sweater with two magenta stripes)), Their hands hands are tied up to the ceiling with metal cuffs, they are restrained, Frisk and Chara are standing near futuristic dildo sex machine, (Frisk and Chara are standing near eachother), (Frisk and Chara are standing next to eachother), (Frisk and Chara are getting Multiple dildos with a metallic inside their anal and vagina), gigantic empty laboratory chamber, (The gigantic empty laboratory chamber consists of big white tiles), (very detailed big white tiles in the background), (One-way glass window in the background), side view, (view from side), masterpiece, very detailed image, 4k image