My comfort level with many things have changed since my wife started in this lifestyle. Other men's cum is just one of them. When she first started, condoms were required at all times. (oral and penetration) That didn't last long as my wife doesn't like the taste of condoms, even flavored ones. After the first guy, if she was going to blow the guy, it was bare for oral and condoms for penetration. It wasn't long after that where chosen guys got to also penetrate her bare and a short time later she let one of them fill her married pussy. I wasn't very comfortable with it the first time and chose to wear a condom vs. getting my first opportunity at silky seconds. Once given some time to think about it, I decided I wanted to see what silky seconds was like and was just waiting for a chance to give it a try.
Using another man's cum as lube and knowing how hot my wife gets one she has one guy's cum in her pussy and getting more cock from me, I was immediately hooked. So much so, that now, silky seconds is my favorite kink. For a long time, it was extremely rare for my wife to be comfortable enough with someone to let them cum inside which made my favorite kink happen almost never. However, for the past year and a half, my wife has had a regular fuck buddy that agreed to only play bare with her in exchange for the right to fuck her bare and fill up her pussy on a regular basis. During this time, they meet up about once a week and nearly every time they play, I am waiting at home for my turn. 🙂 Once I became comfortable with fucking her cum filled pussy, I began to get curious about what it would be like to lick a cum filled pussy. The first time I tried it, was after I had filled her up as I have always been more comfortable with my own cum than someone else's. Even then, once I cum, I quickly lose interest and it took a huge dose of stubborn curiosity and a little encouragement from my wife to give it a try. I was pleasantly surprised to learn that I was not put off by the combined flavor of our juices. And I was definitely turned on by my wife's enjoyment of oral after being filled with cum. The next hurdle was licking her pussy after her fuck buddy had filled her up. Honestly, it is easier for me to lick her after he has filled her up than when I have because I am so worked up knowing she is away playing. At this point, we tend to alternate between her jumping on my cock and us 69'ing when she comes home from a playdate with her fuck buddy.
So, I guess the short answer is that I've become very comfortable with other men's cum. Even still, I have no interest in having it shot directly on me..