My wife and I used Tara as a babysitter for a couple of years. Our kids loved her and she got along with them well. Tara graduated high school then went off to college. We had to find a different sitter until she came back home from college.
Before college, Tara was a quiet, smart girl. Always wore big sweatshirts and tights. She ran cross country so she was in good shape but never showed off her body. It changed when she came over the first time coming back.
She had a tight top on and shorts. You could see her abs and her breasts were framed nicely in her top. Her ass had a nice curve to it and her muscular legs were almost splitting her shorts. My wife and I were both shocked at her appearance but she was her normal self, personality wise.
When we got back from our date and Tara went home. We went into our room to change to go to bed. My wife noticed that some of her lingerie was out of place that was hanging in the closet. She is very OCD about her clothes and lingerie and could tell immediately they have been disturbed. She went and smelled a different type of perfume on the lingerie. She then smelt the crotch and there was a musky smell to it.
I could tell my wife was upset but I knew how to make her feel better. I began to tell her how good Tara probably looked in it. I took the lingerie and smelled it. I could smell Tara on it.
"Imagine her wet pussy and nipples in your lingerie. There's no way she looks as good in it but I bet she looked good. She probably rubbed her pussy, thinking it was you wearing it. I can smell her pussy and it smells good."
It wasn't long before she was on top of me, bouncing on my cock. Once we were finished, my wife wanted to catch her in the act. I suggested that she write her a note saying, "I don't mind you wearing my lingerie but you need to take pics and show us. If you do take pics, wait until you go home, then send them."
The next day, my wife called Tara to book her for next Saturday and then wrote the note. The trap was set.