Have lots of fibre in the days leading up to the long session and try to limit how much you eat during your cum dump period. Once you’re in bottoming time, avoid high fibre food and other things that will move through your system quickly. Protein smoothies will help keep you nourished without adding too much to what’s going to come down through your system. Three pumps of water up your ass ain’t going to cut it for the amount of dick you’ll hopefully be taking. Make sure you douche deep and thoroughly – even if the water runs clear, do it some more as you want to get everything that’s deep inside so it doesn’t move down your system in between tops. Plus you’ll probably not want to douche after every couple of guys – that’ll get their cum out of your ass which kind of defeats the purpose. You’ll need to stay awake and you’ll need to stay hydrated.
Make sure you get plenty of water and drink a moderate amount of caffeine to ensure you’re alert.
But stick to soda pop or tea – avoid coffee as it’ll act as a diuretic – not something you want when you’re taking dick all weekend. With all these guys coming over, you are putting yourself at risk.