Is it normal to fantasize about having an imaginary penis?
I'm a 26 year old female who has recently told a friend about a very dirty fantasy I have. It involves me having my way with two fictional characters that I am attracted to / have feelings for / am in love with. Kadaj and Yazoo from Final Fantasy (Advent Children). Anyhow, in the actual movie those two characters are obsessed with their mother and being re-united with her.
So I now have this fantasy of having a penis and fucking (for lack of better terms) Kadaj while he gives oral sex to his brother, Yazoo, and in is sandwiched between us as we both plow into him as he writhes and moans breathily and calls me "mother". I don't actually want to have a penis in real life nor do I want to become a male. I'm happy with my real gender and anatomy (and no, I'm not inter-sexed or transgendered, I'm a biological female).
After telling one of my online friends about it (who also happens to write dirty smut / slash fics about those two characters), she responded by telling me that I was both "hilarious and gross". She seemed quite alarmed by it, for someone who writes dirty slash / yaoi fiction and it made me feel disgusting and as though I am some sort of perverse creep. Now, I wouldn't normally ever impart my intimate fantasies to anyone (especially the really dirty and seemingly socially unacceptable ones like I have in the post) but something about internet anonymity offers me a sense of solace.
Was I out of line for mentioning that to my friend, even though she writes dirty / gay porn about those characters, herself? And am I complete pervert for having said fantasies?
To make matters worse, the friend in question mentioned that she was 17 and subtly emphasized her age which makes me feel even more guilty and disgusted with myself for sharing something so personal and so explicit with an underaged person. I also fear that she might now go and tell her friends / mutual friends / other random people on Tumblr what I told her about my fantasies or make it out that I'm some sort of pervert / pedophile. I have no feelings for her (not romantic, nor emotional, nor sexual nor anything else) but am just left feeling repulsed by myself, my fantasies, the fact that I shared those fantasies with someone and that that person, as it turns out, just so happened to be a 17 year old.
Any advice would help. Thank you in advance.