you notice that danielle is not nearly as well off as terra or any of the other satyr and then you remember the intercorse taht both of you had with a satyr right after your transformations and tell tarra that.
terra then places one of her breasts into daneills mouth for her to suck while you notice that there are satyress taking care of robert and so you chose to have fun with your mate terra and enter her vagina with your properly sized penis. daniell meanwile can only instintivily suck on terras breast that was presented to her and she feels her changes going even further.
she first notices that her breasts have expanded from those that any satyr has before intercorse to those of a true satyr, you judge that they are at least DD, next she feels her horns growing to the proper lenght of a satyres and at the same time her ears grow into a point.
all of these changes are only making danielle suck on terras breast with more passion which being added to your cock in her vagina is bringing terra to an orgasam at the same time that you have one.
after all 3 of you have an orgasam you look at daniells new and improved self with breasts that would drive any human mad and a body to go with them.
"welcome now you are complete, while you may have many intercourses in your time you will always remeber this as it is what brought you into this world" you say.