Window fucking

Fucked my wife in front of the window with curtain opened last night. I noticed a man in the opposite building saw us. I didn't tell my wife about this as I knew she would escape from the window. I continued to tease and fucked her until she was closed to orgasm, then I told her a man in the opposite was watching us. Out of my expectation, she reacted even wild and moaned loudly, then had a strong orgasm. What a fun.