 If you liked
Kimi wa Pet
|
 ...then you might like
Boku no Pet ni Narinasai.
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These stories both involve situations where the love interest starts out acting in a owner/pet relationship, though in Kimi wa Pet the owner is the woman and vice versa in Boku no Pet ni Narinasai.
Though story wise Kimi wa Pet has more drama and the characters are more complex Boku no Pet ni Narinasai is cuter and much shorter.