If you liked Darling wa Namamono ni Tsuki, you will LOOOVE Aisuru Hito. Both come from the same mangaka so they both share those ridiculous faces that Yoshihara Sensei is so great at.
The same goes for the appearance of long-suffering bishie men that somehow deal with the antics of the crazy, sexually voracious female characters that they love.
If you love outrageous humor and seeing the FEMALE characters act raunchy for once instead of being yamato nadeshiko, you've got to read both of these mangas.
This is going to seem like such a random recommendation but just trust me on this--if you liked one you'll like the other. Koi wa Tenka no Mawarimono (Ikenai Candy Love) is a one-shot so it can't go very far, but the female character's alter ego reminds me a lot of the main female character in Darling wa.
ALSO the thing that most reminded me most of Darling wa in Ikenai Candy Love was the style of drawing. I loooooove how in both mangas they don't put the girl up on a pedestal and make her have hideous ridiculous faces that are hilarious to look at.