Going to a wedding tomorrow - HELP!!!!

[LoveMyGirls]

Ive borrowed a dress off my mum as we are flat broke i kept hoping i would get used to it but the thing is that although its "ok" and doesnt make me look fat it it one of these sorts of dresses which you cant wear a bar with and it makes my boobs look a funny shape and as if im a B cup rather than a C-D cup iyswim? But i'm only going to wear it once and we cant afford for me to buy something to wear for a day.

I'm meeting some of dp's family that i have never met before even though we have been together 5 yrs and do feel i should look my best.

Please can someone tell me what i should do?

tit tape?

tape your boobs up, borrow/buy a strapless bra or stick on cups?

Im useless with fashion/ clothes etc, what is tit tape, where do i get it from and what do i do with it?

Its one of those which you can't wear a bra with, bit like a bikini top with dress iyswim?

You're wearing a bikini top style dress to a wedding?
Have you got a wrap or a cardi or a jacket you can wear with it?
If you're a C/D and not wearing a bra it may not be very nice without something to put over the top imho.
Also weather forecast is that it's going to piss wiht rain and you will be cold (and you don't wanna be cold without a bra in front of dp's relatives do you?)

Lol pink, i dont think i discribed it very well! Have decided to wear a bra as i tried it and it looked better than without one, i'm going to try and borrow a cardi off my sil buit if she doesnt have one suitable i will have to do without. I hate not having any clothes and never spending any money on myself but we just don't have it, maybe next year i will be able to have lots of nice clothes!!