Sooo I bought this

[PhatSlag]

Bought this dress.
It says model is wearing size 8, I'm thinking 'well I'm normally an 8 but the model looks pretty slim so I'll get size 10'
Man, it's freaking massive. Comes down to my knees, not the sexy look I was aiming for
Should I put a belt round it or is that not the way they should be worn?? And if so, has anyone got any suggestions of a nice belt please??
Or admit defeat, send it back and get a smaller size?

Not sure why you would ever size up a dress like this?! If it's very long on you and you wanted a mini length like the pic, I would send back. I don't think a belt will save it sorry

Honestly, even on the model it looks like something you'd wear over leggings if you were painting your house.
Admit defeat and send it back.

Send it back and get a smaller size. Different brands are all different sizes anyway.

An oversized sweater dress is never going to look sexy.

Send it back and pick something less sacky.