The neighbors put on a show

I was sitting at my computer, and I looked out the window into the neighbors into a teenaged girl's bedroom who saw me looking and decided to put on a show

It just started One afternoon. I was writing E-mails on my home computer. When I glanced at the house next door. Lily had her curtains open and she is letting in a cool breeze. At 16 she had a great body, and she was only in her bra and panties. She waved to me and I waved back.
Next thing she called her younger sister Tammy over. Tammy was 14 her boobs were little smaller than her sister's but still in great shape. I tried to focus on what I was writing. Lily was talking to Tammy; she got her to stand in front of her facing me.
Without warning Lily lifted her sister's bra flashing her breasts at me. At first Tammy was trying to get bra back. In a playful fight. While they were doing that, I turned my web cam to them and used the zoom on my computer and recorded what was happening.
But then she grabbed and removed Lily's bra. They moved around a bit, and I watched their naked breasts bounce around.
At this point it was very hard to focus on my E-mail, and I quickly realized what I had typed the last few minutes were not even words.
Both girls came to the window topless and waved to me. The bottom of the window was pelvis high, and I saw Lily reach down and remove her panties which she waved about. Then Tammy did the same. Both of them looked like they were touching themselves then they brought their hands up and licked their fingers.
Then the two sisters were facing each they were hugging and kissing. Then I noticed they were moving their buts from side to side while they were kissing, they were rubbing their breasts against the other sister's breasts. When they stopped, they turned to me again and I could see their nipples poking out and was thinking they could take an eye out with those things.
I watched them climb on the bed together and get into a sixty-nine With Lily on top. I finally saw that they were both naked. They both had lite pubic hair Lily had a bit more than Tammy.
They were in a position that I could see Tammy's pussy and I saw Lily spread her pussy lips stick her tongue in Tammy's pussy. I watched her lick her sister out. This went on for a while then Lily got off of Tammy and they lay beside each other. Lily opened a drawer beside her bed and pulled out a small vibrator put an AA battery in it turned it on spread her legs and placed the head of the vibrator and pressed it down on the hood over her clitoris. After a few minutes she gave it to her sister who also used. They passed it back and forth a few times before they stopped and had a nap. Laying on Lily's bed naked.