You're punishing me, which is obviously fair enough, since you're my master. But strangely, you've chosen the fucking machine for this? In what way is that a punishment? I LOVE fucking machines!!! You've planned this carefully though, and you know that by making me insert the electric butt plug first, and turn it onto 'high', my pussy will contract painfully around the big, hard dildo on the fucking machine as the electric butt plug makes me feel as though I'm being simultaneously fucked hard in the ass! Consequently, this is an unexpectedly painful and difficult punishment, as my reactions make perfectly clear. Ow! Who knew, a session with a fucking machine could be so cruel?