I sure hope you didn't twitch. 50 strokes is a lot. Slap those balls for me if you failed.
Good boy.
If you get close to the edge, stop stroking. We're going to edge edging, and keep pushing you closer until you simply can't stop yourself from cumming. Of course the longer you go, the more desperate you will become, and you will purposefully disobey my commands to get a little bit closer, and twitch.
Bad gooner. Slap those balls.
Do. Not. Twitch.
Give me 25 strokes while you think about ramming that hard cock into my pussy. Think about me writhing around, getting my fuzzy blanket all wet. My nipples getting harder as you ram me against my blanket.
I think its time I call over some friends to help with the fun.