FL USA When you know the person is in love with you and you have absolutely no feeling for them. Or if it's for any reason (a job, etc) that both parties are not aware of. But maybe that just makes you a manwhore/girlwhore. Maybe sex is only a sin when you use it as a weapon. Like when you know you have a STD (Herpes, AIDS, etc) and are purposefully passing it on. Keri-Jade, 21
Brampton, Ontario CANADA When you commit adultery Melodi, 19
Gahanna, OH USA I don't think sex is a sin unless its with someone other than your loved one or significant other or if its with a child or relative. God made sex feel good for a reason, to make more babies. I know that they say if you have sex before marriage it's wrong butI don't believe it. I think all creatures big and small know what procreation is. We were given the capibility to make it feel good so we would procreate. Or make more people. Its a science thing not a god thing. Sex is not a sin a majority of the time except for the above reasons. Stephanie, 25
TX USA Never, for two reasons. First, I don't believe in sins - I am non-religious. I believe in crime, and I believe in things that are against ethics or mroals, but I do not believe in sins. Also, I am a sex-positive person. Sex is a *good* thing. At no time would I consider sex a sin. etoile, 20
Washington, DC USA I don't know about it being a sin, but sex should never be used to exert power, degrade or manipulate another. Felicia, 36
Lowell, MA USA Sex is a sin when the act is an exercise of power or self-indulgence ratherthan love. Jill, 61
Saylorsburg, PA USA When others are hurt by it. Jane, 62
West Linn, OR USA when you don't have it with someone that wants you. so lets go baby. A-Dog, 19
McMinnville, OR USA Sex is only a sin when it's forced, incestuous, or used deviously (ie, having sex with someone's girlfriend to get back at him). Otherwise.. play on playas. Katie2, 18
Detroit, MI USA when you are not in love Patty It no longer seems to be a sin whenever and whomever you have sex with. I would still say with any married person. Laney
TX USA Personally, I don't believe sex is ever a sin unless a crime is being committed in doing it (rape, incest, etc...) If the act is mutual between two adults, it is not a sin, it's human nature... and it's wonderful. Doug2, 29
Overland Park, KS USA When it is with someone who is married or in a relationship. And unfortuantly I've sinned. Christina
MI USA Rape, sexual assault, or any other activities in which the other person does not willingly agree( or is against the law), are the other occasions I can come up with...My basic rule of thumb is, as long as nobody is getting hurt, what is the problem? Of course, I could be wrong, what do I know? Frodo
age unknown, parts unknown When it's involuntary (as in rape). Otherwise, I believe that's a personal choice and since I'm not greatly religious, I wouldn't say it's a sin to express love for someone in that way. Angela, 18
Bella Vista, AR USA When it involves underaged persons or when it involves force. I suppose you could push the envelope a little and say that it's also a "sin" if the woman is just trying to get public assistance or remain in some government funded program by means of developing an additional dependent. Fisch, 46
Preston, CT USA When it's against one person or the other's will, or is with a child. But i don't believe in "sins" persay, only good and evil, right and wrong. Talia, 24
Wilton, CT USA I don't really believe in the idea of "sin"...people have sex for the wrong reasons or at the wrong time or with the wrong person every day, but it isn't "sinful". Maggie, 22
Sandwich, IL USA I don't believe in sin. Alias Irrelevante Well, isn't sin defined by the Bible or a church? According to that sort of standard, it'd be extramarital/premarital/homosexual/etc. But if I were deciding what was a sin and what wasn't, I'd make sex a sin only if it hurt someone who was unwilling to be hurt. With qualifications--for instance, if someone were in love with you but you never led that person on, and you had sex with another person and it hurt the person who was in love with you, that wouldn't be your fault and thus would not be a sin. Karen, 22
Ames, IA USA When it's against your will. Nicci, 27
Las Vegas, NV USA in my opinion sex is a sin when its for fun or when its not with someone you love i mean is shoukd be like the ultimite expirience every time with the one you love Alesha, 15
NJ USA When one of the persons involved is in a relationship with another person - other than the sex partner. Amy2
Lowell, MA USA Sex is a "sin" when, and only when, any party involved does not consent. Eric, 19
Beverly Hills, CA USA The official taching is "when its done outside the will of God". I mostly understand that to mean that sex is sinful when it turns your thoughts and actions inward toward yourself or is harmful to another human being. Laura, 37
Lowell, MA USA Sex is a sin, to me, when one of the people involved actively objects but is involved anyway or when one of the people involved is deceived about the sexual history of the other and thus does not protect themselves. Johanna, 18
OK USA I dont think sex is a sin....unless it is unwanted and someone forces it on you Nicole2, 20
FL USA WHEN YOURE ALREADY MARRIED Derya