Caught

I arrived home from work early as I had finished all I had to do. I entered the house quietly has I thought the my wife was having an afternoon nap as she does sometimes. I moved towards the bedroom to see if she was ok only to hear moaning noises coming from the room ok I thought What's going on here? I looked through the crack of the door to see her lying on the bed legs wide open and her panties around her ankles. She had a but plug in her arse and was fingering her pussy like mad I thought Should I walk in but no I will let this play out.
She would pull her fingers out then go to work on her clit get excited even more then go back to finger fucking I removed my cock from my pants and just stood there wanking again she pulled her fingers out and this time the butt plug and continued to play with her clit she then proceeded to finger fuck her arse at the same time I knew she was near to her orgasm her hips lifted of the bed and her legs started to tremble the noise was loud but what a orgasm I came in my hand and left to go to the toilet and wipe myself clean.
I went back to the front door and slammed itmed it and proceeded to the kitchen a while later she came in looking a bit flushed and asked how. Day was .