I think that if she was comfortable enough to have sex with another in front of me then i should be comfortable enough to watch. Did you offer to join the fun and help her enjoy him? Ask her if she would like that and if she says yes - then do whatever she wants you to do including sucking her after he cums inside her, snowball his cum with her ar even suck his cock for her to watch. If you REALLY LOVE her and want her to be happy, then help her to be happy. Maybe she would like two or more cocks at the same time. ASK HER!

I watched mine have sex for the first time on Saturday night, in our first 3some together. For me it was explosive. watching them kiss, him finger and lick her and then enter her was simply awesome. She cums like a steam train, and had over 100 orgasms.

She loved it too, and cant wait for it to happen again. When I have some time, I will write the very horny story

The only thing she did not like, was me showing her his cum in my mouth. He was fucking her doggy and then pulled out to shoot in my mouth.

Why didn't she like seeing his cum in your mouth? Did YOU enjoy him comming in your mouth?
Did you swallow his cum? Did you suck him dry after he came? Do you suck cock from start to finish or just take his cum while he is fucking your wife?
Did she know you were going to take his cum in your mouth? Have you let her watch you suck cocks? I hope you have been honest with her. You
really MUST BE HONEST and tell her what you like.

I Love my Girlfriend getting fucked by other Guys. I love to take pics and help in any way to make her come hard and often...
A man who truely LOVES his girlfriend knows he DOES NOT OWN HER and will therefore do what he can to help her be happy!
Sounds lik you love her. I'm proud of you man.