Hi, I'm looking for a specific Destiel where Dean gets Castiel as a pet angel, I don't remember how, and Cas is "too young" for the "intimate" side of things, but Dean can't help himself. Cas is quite shy and timid. I think Sam may warn Dean that Cas is not of age to be sexual, but I may be mixing up fics. That's all I remember. I think maybe it was AO3. Can anyone please help?