Siren brothers

So, these are Siren brothers Marley(the blue one) and Ivan(the teal one) and they have brought you to an underwater cave, which surprisingly has land and oxygen, because you were thrown into the water by your brother who stole the crown from you. They are both princes of the underwater kingdom, and both seeking you as their mate, who do you choose? About Marley - sweet, kind, doesn’t want to eat you at all, yandere, calls you “my pearl” twins with Ivan, has a hate-love situation with his brother. About Ivan - a bit rude, selfish, wants to eat you just as much as he would like you as his mate, yandere, calls you “Guppy”, the older twin of Marley, crown prince of the underwater kingdom. About you - human, whatever gender you want, and whatever looks you want!