This is Day 3 of the challenge, proceed only if you completed day 2:

https://www.reddit.com/r/Femaleorgasmdenial/comments/1eqguek/minidenialchallenge_2/

Today is a ruler day. Take a ruler, wooden one is better for more natural feel but if you don't have it, just take a plastic one. Following rules apply:

1. You cannot cum today. Duh.
2. You can touch your clit, pussy and tits only with the ruler. Massage it (with the ruler), rub, grind or spank it.
3. You must edge at least 5 times today. Before you start, kiss the ruler passionately for a few seconds. Imagine it's your boyfriend (it kind of is), and you want to make him as hard as it gets before he fucks you. And lubricate it with your saliva. Just like you would with your Master's dick before it fucks you. Simple.
4. Each time you are close to orgasm, I want you to stop and kiss the ruler passionately for a few seconds. Then spank your pussy (and/or clit) with the ruler. After first edge you must spank it 10 times, after second edge spank it 20 times and so on. Each spank should sting. It's not gentle tapping for pleasure, spank it. And after each spank remove the ruler from your pussy immediately, I mean: don't linger around and massage yourself with the ruler. If you get too close to cumming from the pain - you need to wait longer and calm down. Kiss and suck the ruler in the meantime, express your gratitude to it for spanking your pussy.
5. You can only watch these softcore lesbian kissing porn videos or no porn at all:

https://www.pornhub.com/view_video.php?viewkey=664354c2c7a04

<another link in the comments because it gets removed from this post>

Spoiler alert: there is no pussy licking, toys insertion, clit rubbing or strap-on smashing in these videos. Girls kiss while you slap and rub your pussy with the ruler, that's it.

In case if you fail and get an orgasm (hopefully a ruined one with little to no release), you are on no touch for 24h and you must start the challenge from #1. Be a good girl and slap your wet pussy. Hopefully, after you're done with the task, your pussy will remember it for a day or two.