Stargazer6's Favorite

Hi I'm trying to find this yaoi that I'm not really sure if it's just my dream or it really exists because my memory of it is really vague and I haven't really found it successfully yet for a few times

But I think the story is something like seme putting (wooden?) eggs into the uke's ass? (and saying how if only those were real eggs?)

Thank you ~ （/TДT)/