Spice Or Creep?

So I wrote my first "erotic" scene in the book I am working on.  I wrote it while at McDonalds.
Creepy?  Or not?
It wasn't like there were tonnes of little children running around, it was mostly seniors.  My biggest worry was that what I was writing would cause me to get turned on, and then I wouldn't be able to leave for a while.
I kept feeling odd, because I don't even like sex scenes in movies, I don't see the point.  the only movies I've seen where it was integral to the plot was in Crank, with Jason Statham, and the reason for that scene was because he had to keep his adrenaline up or his heart would stop.
In this I think the fact that the characters have sex is important because it makes one character rethink their entire life (without giving too much of the plot away.  Don't want people to read this, then read the book and be all like "Wha tha Hell? Bitch done tol me what happened!")
It was the gratuity in which I wrote.  I'm not worried too much if my mother reads it (she can rot for all I care), but it isn't something I would want to show my kids.  Ever.  Even in fifty years, or after I'm dead.
I have to think that my words will be read by my children, and I would prefer them to be inspired by what their father wrote.  I don't want to cheat story, either.  Just because love making in books and film make me uncomfortable doesn't mean that my characters, the story arc, or anything else should suffer.  I bring enough of my beliefs and predjudices to the table, I don't need more.
I believe that stories aren't written by authors, but through authors.  So yes, our personal brand or style will be in the story, but that should be where it ends.  We sing the song, we don't write the lyrics (I know, confusing in a literary sense).
I hate when an author uses a cheap ploy or uses the Dues Ex Machina to save the story or character.  That's part of why I chose my pen name as Judas X. Machina, I wanted stories with a twist that wasn't a cop out.  Like the dreadful third Hunger Games Novel.  Tho I do like it used comedically, like in Life of Brian where he's saved from falling to death in 33A.D by a passing alien spacecraft.