"Cum for me," the succubus whispers, and makes no effort to stop teasing her, letting her hands wander over Amara's body, encouraging the elf to do the same, all while her tail continues to thrust into her, again and again, working with all her expertise to bring the poor elf to orgasm after orgasm, spending at least an hour, if not longer, on keeping her in a near constant state of bliss, before, with a single, sharp thrust, attempting to push through the magical barrier, and press her tail directly into Amara's womb.