The moment his tip slid further, a soft warmth enveloped his glans, slowly dragging along the surface of his cock with faint bumps. A pleasant tingle shot through his cock, before Nerim's insides clamped down, twirling around his shaft.
'Eh?'
Immediately, Asmodeus noticed the difference between a human and a mermaid pussy.
Once his cock penetrated her halfway, the soft walls close to her entrance immediately narrowed, tightening like a vice around his shaft. Her entrance muscles became firm and clamped his dick like a cock ring.
"Nnnnn~ it's so hot, my pussy feels so good."
'She's so tight... my cock's going to snap!'
Asmodeus grunted the moment her pussy transformed, as if a living creature, the narrow entrance locked his member in place, allowing for shallow thrusts. The hard, squishy flesh stopped his glans from pulling out, hooking them in place as her wet, slimy walls fluttered around him and narrowed in sync with her erratic breaths.
