Zeus loved fucking, everyone knows that. But sometimes he loved transforming into an animal before starting the fucking. Okay, for those with a bestiality kink bulls and horses, whatever. I can see that. But sometimes he did shit that didn't even make sense:

• Demeter: As a snake. Admittedly she too was a snake at the time. Why they couldnt just, you know, have sex normally is beyond me.
• Persephone: As a snake too. Which is kinda fucked up considering Persephone is his and Demeter's daughter.  Literally born from that time those two decided that serpine shit was in. Like mother, like daughter, eh Zeus?  Well, Demeter is his sister, so I guess for him it was just one more step away. And he must've really liked it because he went after Persephone a second time, only disguised as her husband, but unfortunately Hades only has one penis, unlike a snake which has two.
• Nemesis/Leda: As a swan. I have met swans, and they are vicious, vicous creatures. I would not get one near me, much less near my vagina. I would be too scared of it biting the shit out of my labia instead of sticking its crazy duck penis into me. After this union Nemesis/Leda (name depends on the myth) laid an egg, millennia before hentai discovered it, which hatched to give us Helen of Troy.
• Eurymedousa: As an ant. I'm not even gonna touch this one. I don't know why he thought this would be a good idea.  Even if you crawl up there and not get crushed, I can't imagine that being pleasant for him. I'd just go for the bull option again.
• Phthia: As a dove. I actually laugh as I think about this because I can only imagine her grabbing him and shoving him up her vagina.
• Danaë: As a golden shower. ...Yeah. I think Cooper and Bayne explored the idiocy of this very well.