This series was made by 890 aki, I couldn't find any older works made by him, so I think that this was his first series. I don't know if it's completed, but so far only less than half of all the completed pages have been uploaded here. Also found some other series, don't now if it's part of this.
Edit: I don't know if there's anything special about adding a new artist tag, so I'll leave it to someone else. If not, i'll change it tomorrow.
Does this mean Yukkuri can get pregnant from a blowjob?
Idk, that was some super-concentrated stuff, so I guess anythings possible. considering they get pregnant just from getting it on their skin, I don't see how there's any difference in getting it in their mouth.
also, there's no general rule regarding how they get pregnant, it's up to the artist to decide.