Opinions please: She wants to make my wedding her coming out party

[HIJKLM]

DF's half sister just began her first lesbian relationship about a week ago. She texted DF today to ask of she could bring a guest to our wedding. DF said "sure, who's the new fling?" her reply "well let's just say it's between two ladies." they text back and forth, he asks if her parents know. DF's father and his wife are devout mormons, this isn't gonna go over well... She says "nope but they'll find out at the wedding though lol"

Here's my thing... I don't care if she is a lesbian but my wedding day is not the time to tell her parents who are not going to take it well. Any other day I'd stand up to her parents and have her back but not on my wedding day...

I say she needs to come out before the wedding or not bring her GF. DF says its their business and we should stay out of it. I foresee drama...

WWYD? Tell her to come out before or not bring the GF OR just let it play out because it's their business?

[HIJKLM]

Right? I'm glad DF asked because I don't think she planned to tell us before the wedding either.

Quoting mommyof11050307:

Tell her if she wants to bring the gf she has to tell the entire family before your wedding. I would be livid if she did that at my wedding. 

[Anonymous]

No not okay. That's selfish. She should A. Tell them before the wedding or B.. don't bring her date.

[Momof3smoochies]

Then you have every right to tell them not during your wedding. If that doesn't work, ask them to leave or not to come at all.

Quoting HIJKLM:

And if it doesn't work out this day I've been planning for over a year could be ruined.

Quoting Momof3smoochies:

I would just wait it out and see what happens. One can only hope they would have common sense and wait 'til after.

[Gealach]

No way!

[CrimsonRadiance]

This

Quoting mommyof11050307:

Tell her if she wants to bring the gf she has to tell the entire family before your wedding. I would be livid if she did that at my wedding. 

[thehickinhickor]

Tell her if thats her plan she is asked not to come at all it's rude and hurtful to way to many people.to have close family drama play out and front of so many.

[kde216]

It is your day. You're the queen bee. If drama starts you tell whoever is causing it to get the f*ck out! On a more positive note, if they all have enough respect then they should all keep their mouths closed till your day is over. Good luck :)

[areyouatroll]

If she isn't going to talk to them before the wedding, you should.

[QueenBof6]

That's shitty of her. Not the time not the place to air that.

I would tell her to leave her plus one at home if she doesn't tell them before

[shortycmlb]

I agree with YOU. Luckily both my fam and ils feel the same, if someone gets engaged, knocked up, new house etc etc they usually try to space it out at least a week or two before and at least a few days after an event (wedding, bday, baptism, christening, quince or anniversary).

It would bother me and I would say that this is my day, not YOURS to where people are fawning/arguing/discussing YOU and your SEX LIFE at MY wedding.

I would say that, to be honest.