Slut wife being a slut :)

Ever since Ally and I pretty much first started dating we established that her and I were both turned on by the idea of her fooling around with other men. After a little while and much partying it was common for her to regularly make out with other men at parties eventually moving on to everything except penetration. Her and I had come to an agreement that she was allowed to do anything but penetration whenever she wanted. Of course she was in total agreement because I had such a small penis and she loved to dry hump with other men while she wears sexy panties as it makes her orgasm too easily. This went on for quite some time or she would regularly have other man over while I was at work to dry hump her. She was always getting her panties stained from all the different guys ejaculating on them during dry sex so I would spend lots of money to make sure she always had sexy lingerie and panties to wear for her lovers. This was a wonderful arrangement and she was always satisfied and regularly encouraging me to masturbate my penis to porn which I absolutely love doing.

One day I had taken part of a day off of work and came home hours early. Soon as I walk to the door I could hear her moaning and talking dirty. I go into our bedroom and she is completely naked on her back with her legs spread while her current lover was fucking her hard with this huge penis. I couldn't believe after all this time of me trusting her to only be fooling around with these guys with no sex I walk in on her having unprotected sex with a guy like three times bigger than me. First I was a little angry but I couldn't help but watch and admire how beautiful her vagina looked wrapped around his big penis going in and out of her as she moans like I've never heard her before. I must have came towards the end of their session cuz I witnessed her wrapped her legs around his waist and beg for his sperm deep into her. Moments later he was barreling his penis as deep as he can reach into her moaning loud as he filled my wife's cheating vagina full of his huge load of ejaculate! That was the most beautiful thing I had ever seen! I ejaculated almost immediately and as I went to go clean myself off I made a noise and they heard me. They had no idea what I just seen and I played it off well so as they continue to go at it they were pretending to only have dry sex. I pretended it made me incredibly horny and excuse myself to go masturbate to porn.

At first I felt somewhat furious because her and I had discussed many times and she has confirmed that she would exclusively have dry sex with these guys and she would always have her panties as barrier between their penis and her vagina. The men were always humping her with their penis all the way out completely naked. It was common to see her doing it from many positions and she was always able to play it off where I had no suspicion that they were actually slipping their penises into her vagina without protection and that's why I never seen used condoms around as I thought I would had she been really having sex with these men. I didn't tell her for a while that I knew she was having sex with all these guys and enjoyed it for a while. On the days I knew she had a lover at the house I would show up from work early and watch and every time they would be having unprotected sex. It was so exciting and made my heart throb and my cock throb every time. Sometimes she would be completely naked with no panties on to hide her vagina in case I showed up early. I couldn't believe how hot I thought it was and didn't know how to approach her that I knew...