Sphinx

Lanaliel wasn't easily intimidated. She might be young for an elf, only 103 years old, but she had gotten around and wasn't afraid of a fight. Unfortunately, in her quest to find a powerful artifact, she found her way barred by a Sphinx, one of the most dangerous types of monster girls that existed. If only she had been good at riddles… Seeing as she couldn't get past the monster girl by solving her challenge, the elf only had two options. To either get by the other female by force, or to accept the offer the Sphinx gave her: allow the futa monster girl to have her way with her. It wasn't that Lanaliel wasn't tempted; she just hated to lose. And so, she tried repeatedly to get past the dangerous Sphinx, only to fail and finally submit. She didn't expect romance to come from it…