So what if OP is fat, or her boyfriend is THIN (seriously, what's with people calling thin/underweight people anorexic? Not cool. Anorexia is not the only cause of people being ridiculously thin.) Besides, her being fat or him being thin aren't the only options. I'm quite thin, my fiance is average sized, and I'm sure he could fit into my favorite dress. Funny thing about certain types of fabric is that they stretch. Another alternative, her boyfriend is short, and OP is tall. Assuming both are of average proportions, a shorter guy would also be smaller around than a taller one, and a taller woman would be larger.

he's a little on the skinny side

Jane Norman clothes are notoriously small. Usually, they're made of non stretchy material - the sort of dresses that you can't just 'squeeze into' because halfway up your hips, you'd hear a crack and a rip and have to ask for help to be cut out. I believe that is what #39 was getting at. Anyway, anorexic is a common term for the terribly skinny, as crude as it may be.

I'm aware that it's a common term. That's why I posted that side rant. If it was just a one time thing, I would have made it a whole lot shorter. I don't approve, at all. Anyways, I've never heard of Jane Norman until this FML, and someone above said that it's only in the UK. Since I'm from the US, I have no way of knowing what sort of fabrics it'd be made of.

don't i know it lol