Keep2Share

Mega NZ will give you 50GB completely free, which is an insane amount. mega NZ is the only one of all the above sites that is completely encrypted and no one, not even you, has a private key to decrypt the files on it.

Linkifier is a multi-host premium service that allows you to download tons of videos from different places, all from one place. Just create a linkifier and download pornography from over 80 free porn databases at the fastest possible speed.

pCloud is a fast, secure, fully encrypted cloud hosting service that you can start using for free right now. If you sign up now, you'll get 10GB of free space! This didn't come in first because it doesn't have as good a user interface as iDrive.

9gag2 is probably the funniest erotic adult humor site on the internet, you can find funny pictures on it and they are always being updated and curated so you can get your ass twisted in half.

K2s CC (keep to share) is another great premium cloud hosting service. It's a bit pricey, but they definitely allow adult content and it's very easy to log in and use.

iDrive is one of the best adult friendly cloud hosting sites. If you sign up for an account now, you'll get 5GB of space and one of the fastest cloud hosting experiences on the planet.