She gets props for convincing you to allow her to put a finger in your ass. That's awesome for you two. But, going all Freud on you and forcing you to tell her just what about her stroking your prostate you enjoyed most, and why, that's a no-no. That's the quickest way to nip your adventurous spirit in the.... Sorry, sensitive subject.
Try to talk about the freaky thing you just did and what it meant.