I would consider her very foolish to try to deceive someone like that.   It reminds of the sort of thing that went on at Junior High.  People aren't puppets to be manipulated and jerked around. 

I think at best your friend is petty and small, and at worst she's unbalanced. I expect that kind of tawdry nastiness in characters in soap operas, not in real life. She should (a) tell the truth and (b) break off all contact with the guy, although if she does tell the truth chances are he'll be sure to avoid her from here on out.

Ya know when you dig a grave for someone else sometimes ya fall in yourself ......

I personally don't think lying, deceipt, or trickery is the best way to deal with a bad or ending relationship, or to try and keep a bad relationship going.

Why does everybody who posts on the various threads become Serena's enabler?

Double post sorry

Serena, you posted above that you were going to go along with this to help her.  This implies to me that you are choosing to take an active part in this, not just be there as a support to your friend.  The "why" is why would you want to take part in something that is dishonest and aims to hurt other people.  You ask "why not" - the why not would be for your own personal sense . . . not being involved, not linking yourself to something that is not right (In my opinion it is not right to tell someone there is a baby, when there is not one).

I think it could affect yourmental well being when down the road you could possibly have to deal with how your part in this encouraged and aided in hurting other people and affected their lives.  If you are helping your friend you are encouraging her to be dishonest - I think that at some point that is going to bother you.

Seems to me that "getting even" is sinking down to the same level as the transgressor \i don't see how that can be at all healthy for your friend. or you

Serena, maybe one way your friend can teach the guy a lesson, is by moving on without him. Would she even really want someone like him in her life? Probably not in the long run. Right now it may hurt, but it opens her up to be free to meet someone who will respect her and treat her well. This guy sounds like he never could do that. In the end, it's his loss, not hers.

There's an old saying; "the best revenge is living well".

A  few pointers:

Do not accept money from this guy for the baby.

Do not let the charade go on too long.  Your friend needs to end the charade and not get caught for it to be effective.

I would say a reasonable time for the charade to go on would be about a month or so.

What you will be teaching this guy is that women can't be trusted. Thus you will only be confirming what he already thinks, and giving him an excuse for his dishonesty. Why should a man be truthful in relationships if women aren't?

Thus he will continue to treat women this way, and the next woman who falls victim to his manipulations will have you to thank for it.

You cannot fight lies with lies. All you do is strengthen them.

Serena,

You and your 'friend' likely should not have watched Labor Pains with Lindsay Lohan.

You may not want to consult a therapist, but you likely should consult a lawyer. Faking a pregnancy is not against the law, but involving him, his reputation and a fraud on him in the fake pregnancy likely is.

There are laws about slander and defamation and you both could be held libel. You are taking part in what it is she is doing and it is informed involvement. 

If you tell anyone he impreganted her, you are defaming his reputation.

A spouse can get out of a marital contract over being lied to about a pregnancy. In this case, he could likely say there were actual damages and physical or emotional harm caused due to a direct and intentional lie,  can be dealt with legally.

One can sue a tabloid for reporting you are pregnant when you are not, or that you impregnated someone you did not.... I am sure he could sue for her lying about being pregnant. The problem would be proof of no actual pregnancy and deception. You have offered that proof by posting it here.

If she solicits any support or accepts any, gift or service, it is fraud.

If she does so to take advantage of him, it is fraud. Look into "fraud by deception"

Friends should bring out the best in each other not the worst. This is sick.

Serena,

You are obvoiusly deeply disturbed by something or things that have happened to you and have absolutely nothing to do directly with your friend's situation. You seem angry at all men and at the world in general. You need HELP.

You would do well to read and believe what StevieG wrote.

And I agree with Waterfall, this whole deception the two of you are planning is totally sick and sickening.  I hope the fellow sees right through the both of you.

I kinda miss Serena ... I guess she's busy on Facebook now ...

He won't be alone for long.  Guys like that probably have more than one on the side.