A Surprise

Watching what she is doing curiously, a little fear present on your face, you realise that the mermaid had a cock, and it was large. Going by the fact that you hadn't seen it earlier, you realise that it could retract and hence be hidden.

With a smirk creeping onto her face, she pulls you closer towards her, brushing her cock on your wet pussy. If you weren't in the water, you knew that you'd be drenched anyway by your arousal.