Undercover hottie...

I just came back from the store where I encountered a women who I would not have noticed a year ago. She was about 6'0, neat straight dark hair and wearing spectacles. She wore a t-shirt, denims and sneakers of some kind. She was not chubby, but she was not slim... is that then "slim thick"? She had noticeable boobs, a little tummy roll at her denims and I butt filled out those pants so well. We had a brief exchange after she accidentally bumped over a product display and she was so pleasant. This woman in my mind was that perfect girl next door type, but a goddess online or in the bedroom. So as I get ready to smash one out for her the question of my fantasy is; memory of her in the store or fantasy of her in my bedroom on my wife's side of the bed?