Blowjob Contest.

The sluts were brought out to the arena after breakfast and put into stockades in the centre. From his private seating area Harry could see the nerve and excitement on all the sluts faces. As the stands filled, Harry stood up to address his potential slaves.

"Welcome to Round 1! In a moment a magical apparition of my cock will appear in front of you. You will suck on it for the next hour. The one who makes the cock cum the most will gain an advantage in the next round. Bottom four will be eliminated and auctioned off for everyone else tonight!"

That last line got a cheer for the crowd, but as Harry held a hand up they silenced.

"Furthermore, at random throughout the hour, random spectators will be chosen to give one buff and one debuff to use at their discretion."

And with that Harry sat back down, waved a wand to summon the cocks and with a soronus amplified voice said "Begin!"

Almost simultaneously all 10 girls opened their mouth to allow the hard cocks entry to their mouths, and it was a sight to behold. These girls who all had free will were competing to be enslaved by Harry, and that gave him a raging hard on.

He picked Hermione up and sat her on his lap, she got the hint and started riding him like no tomorrow. She had turned into such a cockslut for him and could not be happier then when she's at his service. Not to mention she was excited to get someone to share that service with.

Throughout the hour the cocks would glow either red or green depending on whether they received a buff or debuff. Harry had the perfect view to see the cum fill their mouths. He lost count after a while but he had an auto counter in place .

An hour passed and the ghost dicks flew into the air. "Let's see how we did."