4 Strangers !
Generate a number between 1 and 4 at https://www.random.org/ :
1 : Edge.
2 : Stroke 100 time for one girl, and that girl only (I know you picked the one at the bottom, right ?).
3 : Stroke 10 times in 20 seconds.
4 : Get on your knees and stay like this for 5 pages. During that time, when you've ended a page, you'll spit on your cock and say out loud "I'm a good boy for Goddess Rin". If you don't want to do that, you can instead edge 5 times in a row, right now.