Knot a bad upgrade.

You pull up your stat screen as you keep dumping your hot rat nut into her tight green pussy. Her moans filled the tunnel as you looked over your new powers.

Dire Bull Rat

Lvl: 15

Melee Attack:45

Ranged Attack: 0

Special Abilities:

Diseased - 20% chance that a melee attack will deal poison damage.

Toxin Immunity - Ignore all non-magical toxins.

Sunder - Your bite now has a 25% chance to rip through an enemy's armour.

Charge - Due to your size a full-body charge has a 25% chance to stun and a 60% chance to knock an opponent down.

Rat Alpha - Between 7 - 14 normal or giant rats will fight for you when you call, cannot be directly controlled.

Dominate Rush: When you use Charge at a target and knock them prone, you can use Sunder and begin a Dominate Contest.

King of the Sewer: If a player fails a combat or Dominate Contest with you they belong to you, and now must do **** quests for you.

Two new Abilities!

Omi-fertile: You have a 20% chance of impregnating a **** of any race or species. Chances rise by 5% per Quart of semen pumped inside the target. Chances rise by 25% if knotted.

Burrower: You can now build new tunnels and your own dungeon.

Nice, nice…. Hmmm you're pretty sure this wizard has a 105% chance of getting pregnant…

You feel your nuts twitch and with another couple of quick thrusts, that percentage goes up to 145%.

Now how about a quest for her. Hmmmmmm let's see how about this one, "Bound in Service" a.k.a make 5 magical **** collars. With…… +15% rat pregnancy chance, Immunity to poison, Immunity to Disease, and **** Recall of course!

Now let's get digging.

You close your stat screen and slowly dig your new dungeon entrance, the wizard's body limply dragging behind you, her legs resting on your nuts as your knot held tight. In time you softened and your pink rat cock popped out of her, with another shot of exp as the words "Impregnated!" flashed over her head.

In time she started working on the collars with a **** huff. She did try to run once, but another Charge and some time under you dire rat sack made the plump green wizard rethink escaping.

As she finished the collars the Bard and the Cleric came to your new dungeon, nude bodies covered in rat spunk and eager for their reward.

Luckily you have these 3 beautiful collars, made for them! The Bard tossing hers on almost instantly, and the Cleric and Wizard had to be held down as the horny blonde put theirs on.

You lied back, and looked through the quests for more stuff for your slaves to do.