Under the moonlit sky, Reimu and Tewi, bound by duty and desire, surrender to their carnal urges. Reimu's dual attributes throb with need, as Tewi's petite frame trembles with anticipation. They entwine, their bodies glowing with youkai energy, as Reimu's phallus presses against Tewi's wet, eager slit. They moan in unison, their voices echoing through the night as they succumb to their forbidden love, their bodies merging in a dance of touhou ecstasy.