The BFF Challenge

Pinch punch first day of the month! In place of a monthly update, as not much has changed since the end of June, let me introduce you to...
The BFF Challenge!
Boop (co-writer of the Longleat posts) and I have invented a challenge to help us reach our fitness goals. By the beginning of September, Boop needs to have lost 7 pounds and I need to be 21% body fat (I'm also hoping to lose 4-8 lbs). As we live in two different Queendoms far, far away, we won't be working out together, but will be keeping each other updated on our progress. 
The reward: a treat in the form of food - we're both thinking a ginormous sundae, either bought or made. I'm thinking honeycomb pieces, Ben and Jerry's ice cream, caramel sauce, whipped cream... the kind I'd need to eat with about 400 IBS pills!
The forfeit: rep to failure one hated exercise. Boop has chosen tricep dips and I've chosen kettlebell swings... We will also have to give up our favourite food for a month - I will forfeit cheese or chocolate, or both, and Boop will give up biscuits or cheese.
I think this is an excellent way to keep motivated, as you can celebrate your successes together or commiserate when it gets tough. Fitness challenges with friends only work if you're genuinely BFFs and not frenemies, however - I want Boop to succeed just as must as she wants me to, and there's no hidden competition as a) we love each other, b) we want the other to be happy with her body, and c) we're aiming for two very different goals anyway.
Wish Boop and I luck!