While a mares are held in hives for breeding, they’re clearly not enough to sate hive’s hunger for love and carnal pleasure. It’s not safe for captive’s future changeling kids to have their holes constantly fucked by horny drones. And that’s where the stallions come into play.  
Here we see a breaking in of a freshly captured male. Looks like he already understood his role in the future and openly embraced it.  
To be a preciuos, delicious lovesource and cumdump for the whole hive. To have a mere seconds without hard cock pounding into prostate — cause when one floods him up and slips away, the next is already there to hilt inside.  
Oh, and he cannot cum himself due to changelings slime on his flare.

Naughty Bug.