back in the day it was difficult to get yuri adult works in a magazine without futa or tentacles, because they "wouldn't sell," so homura subaru had to do a couple before the editors finally let them do milky succubus lilly
nowadays they're firmly established as a yuri-only author so you rarely see anything like that. note that the rest of the works in this anthology are het, but homura subaru's chapter with lesbian cthulhu doesn't even have any weird phallic tentacles or anything. I don't think you need to worry.