Guys would you suck on another guy's cock if he just took it out of pussy?

He's not a very nice person though. He is married to my friend and we get together a couple times a month for dinner and fun. He also calls or stops by every week or two. Two weeks ago he came over with 2 friends he works with. He had shown them pics of me in lingerie and a couple of me taking care of him. I was a bit upset but also excited.