Long penis, untrained throat: a match made in heaven.

Exchanging the positions of the two chains holding her legs up and apart, and putting her back on the first stool, you flip her so she is now face up, walk around her, and without warning, yank off the dick sleeve and slam yer cock into her mouth, shoving it down her unprepared throat.  

"Mmfffghhh!" she says, followed by you applying tight nipple rings to her tits, and start throat-fucking her.  

After a few seconds, you start shooting down her throat, and then pull out, splattering long strings of scalding jism all over her face, tits, and stomach.  Then you put on a longer-spiked dick sleeve and walk back around.