Which celebrity would lure you to stray? Most survey takers wouldn’t break their vows to be with a celebrity, no matter how sexy. Still, 21 percent of women would take the plunge with Matthew McConaughey, while 17 percent of men would like to break their promise of fidelity with Jessica Alba.

Angelina Jolie was the object of desire for one in 10 men and women.

How did cheating make you feel? Almost half of cheaters felt guilty about it, although only 37 percent say they regretted it. An affair made more than half of women feel more sexually desirable and more attractive, a bit more so than men. Thirteen percent were glad they cheated. Women were slightly more likely to feel the affair was justified (23 percent compared to 18 percent), but they were also sadder about it afterwards (30 percent compared to 21 percent).

Why did you seek sex outside your relationship? Among men’s top reasons: 44 percent wanted sex more often, 40 percent wanted more sexual variety. Women’s top reasons: 40 percent desired more emotional attention; 33 percent wanted reassurance of their desirability. Physical attraction was a strong pull for about 42 percent of men and women. Revenge was more of a motivation for women, with 11 percent of them naming it as a reason they cheated, compared to only 5 percent of men.

Did technology play a role in your affair? One in five men and women who cheated used e-mail or text messages to arrange hookups. Eight percent of men found their affair partner at a dating Web site or chat room, compared to only 3 percent of women. But the large majority committed infidelity the old-fashioned way, no technology needed.

Did you get caught? Fifty-nine percent believe they totally got away with their affair and another 11 percent think their partner was suspicious. Fifteen percent of women willingly confessed to cheating, compared to 11 percent of men, but only 6 percent of men and women confessed when confronted. Only 2 percent were caught in the act.

About 50 percent of survey takers say they’ve had a fling with someone else’s partner at least once.

Have you ever been cheated on? Forty percent of men and 53 percent of women say they've been cheated on at some point in their lives. Twenty-one percent suspect present or past infidelities, while 11 percent are sure their current partner has had an affair.

What happened after you found out? Thirteen percent of women and 18 percent of men got over it and stayed together. Forty-four percent of women and 37 percent of men either left the partner immediately or later when they realized they couldn’t forgive the infidelity.

How many times have you been the other man or woman? About 50 percent of survey takers say they’ve had a fling with someone else’s partner at least once.

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