I am a 40 year old married man. My co worker is 22 and has a 19 year old girl friend. I stopped by to pick him up for work the other night and he told me he and his gf had just fucked and she was in the room naked and playing with her pussy. He asked me if i wanted to see. He opened the door and their she was with her legs spread wide open and rubbing her pussy. When she noticed us she jumped and covered up. After getting a little mad at us she asked me if i liked what i saw and how long it had been since i had seen a 19 year old's naked body.I told her a long time and she smiled and dropped the sheet and exposed her young body to me. I could fell myself getting hard. She asked if i wanted to watch her play with herself and i said yes. As she starting playing with her pussy my buddy went over a she started sucking his cock. At this point i could not help myself and i pulled out my cock and stared stroking it. She stopped sucking him and watched me stroke it and said i had a nice cock for an old guy. She really starting getting into playing with her pussy and i could feel i was about to cum. She asked if i wanted to cum on her so i went over and cam on her pussy and she rubbed it in. I never told my wife this happened but now when i go over to pick him up she always seems to be walking around naked. I want to fuck her in the worst way. Should i ask or just be happy with whathappened??