642 days of no underwear ;)

643 seconds of edging, try to get at least 60 edges in

644 slaps to your balls every day for a week

645 minutes till you can cum

Any time you would like to cum in the next 646 hours (around 27 days), you must clamp your nipples for 646 seconds (around 10 minutes) before and after the orgasm.

647: the amount of times you need to slap each of your balls. You have a week to complete this.

648 the amount of flicks your going to give each nipple and your clit

649 minutes with a buttplug before you can cum.

punsh your balls for 650 times with your fist. You have 650 minutes to do this.

651 sit-ups with clothes pegs on your nipples.

652 Edges before you can cum.

653 edges before you can ruin it. (Payback is a witch :D)

654 spanks to your balls

Wear a permanent wedgie for 655 minutes.

Attach 656 clothes over the next week