Scarlet's suddenly felt a powerful hand pushing her down; the large cock was something she had never expected. Her soft lips stroked along the shaft with smooth and silky skin, a beautiful cock even by a siren's standards.
The huge girth filled her mouth as her lips touched and struggled to envelop the strangely completely shaped member; as a Siren, she had a unique vagina, which meant normal males would never reach her sweet spots, as they were all hidden with thick and sticky flesh folds.
'His cock is so tasty, why is it not disgusting like the others... my tongue wants more... please smother my mouth with your tasty precum!'
Still, the cock in her mouth seemed designed to make a Siren orgasm repeatedly; the shaft had countless ridges not big enough to move the flesh folds in her cunt, but they could force her on folds to rub against those sensitive areas forcing her to masturbate in essence.