"It's probably 'cause most men see the 'other' woman as just a fluffer, and he will come in and do some REAL satisfyin'...."
You got it! Actually, he'll come in and do them both, probably at the same time. And they'll scream with pleasure, no doubt. That's how it happens in the movie...
I had the displeasure of watching some amateur porn once. The difference between it and the slick, well-produced commercial porn is amazing, to say the least. I hate to say it, but the amateur men don't come off looking so good...really...I can't believe they allowed themselves to be filmed. Yuck!
Many of us prefer to keep our clothes on because the sight can be farily disgusting when they're off. After all, if we have to look at all, wouldn't it be not as disgusting to see Helen Thomas with her clothes on than off. In her case, "indecent exposure" would mean something far different than in the case of Angelina Jolie.