ネフェルラミアス

Four sisters of the same mother that serve Sphinx. Just like most Lamias, they coil around their catch as they play with him.

Given the role to test challengers of the trial, they play with anyone deemed unqualified as a group. With all four of them coiling around the man, they will take turns raping him, forcing him to ejaculate repeatedly. They will also mate for reproduction if they like the man, and will again take turns raping him. If the man is too weak, he will die from the gang-rape. If he is strong enough to survive, he will spend the rest of his life shared by the four Lamias as they keep him as a group sex slave.