Side effects of servitude

Eliza immediately notices you wince in pain and rushes to your side. "What's wrong? Are you ok?" she asks you. You don't have the clarity of mind to answer her in the moment. Both of your hands are gripping the sides of your head already, trying futilely to suppress the pain.

"The collar," you hear Ern mumble from her relaxation spot.

"Oh, right," Eliza replies, now seeming to understand what's happening. As the pain quickly fades, you look towards Eliza, silently searching for an explanation from her. "It's ok, you'll be fine," she consoles as she tries to lead you back to the cushions in the middle of the room.

"What's going on, what was that?" you pressure Eliza for more information.

"You'll be fine," she insists.

"You mentioned the collar. What's going on with the collar?" you continue. Ern's comment piqued your interest and now you have to know.

"It's fine," Eliza repeats. "The side effects will go away soon."

"Side effects?" you question, staring back at Eliza to get more information from her.

"There is a mild control spell built into our collars," Eliza finally elaborates. "Don't worry, it's not changing your psyche, it just brings out what was already inside. In our cases, it makes us more subservient to Mistress."

You take a moment to process what Eliza just said. It all makes more sense now. You never would have reacted so positively to someone shoving an object up your pussy, but now that it's there it just feels right.