In this animated hentai, a brother and sister find themselves in a dollhouse of sorts, their bodies contorting and transforming into doll-like versions of themselves. The sister, with her large, perky breasts and long, flowing hair, teases her brother, her body becoming more and more human as she strips. Her brother, equally doll-like at first, grows a thick, veiny cock that she hungrily sucks, her eyes rolling back in pleasure. They fuck in various positions, their bodies squishing and popping like doll parts, yet feeling real pleasure. The sister rides her brother's cock, her tits bouncing, until they both explode in a mess of animated cum.