[SluttySarah]

If you thrust your buttplug in and out of you as many times as you can using only toothpaste for lube (relubing allowed, but it'll be with more toothpaste!), I'll do the same with a plug larger than yours!

If I can match however many thrusts you did, you'll have to find somebody else to play this game with until you can win (you can find me again), only they can use regular lube.

If I can't stand the burning and give up before doing at least as many thrusts as you did, the next time I talk to you, I'll squeeze a good amount of toothpaste up my butt and stay plugged until you decide on a punishment for me.