Logic says that impotency spell just means that someone just can't get it up, or get it up enough, not prevent pregnancy, you could still get someone impregnated with a limp dick....

But it's Equestria, so let's just let that bit of logic be thrown out of the window for the story--Spike's shooting blanks for the moment since he doesn't want to knock up his marefriend or her two friends by accident, think of all the scandals if that happened, especially Fleur.

Carry on, nothing else to see

“Somepony is enjoy herself.”

allyourbasearebelongtous.com/allyourbase.jpg

“Oh, I sent Rarity home with a one of my body guards and he helped her bring you here.” Fleur answered, her smile never once faltering.

I know this might be a bit confusing when you wake up,

didn’t take long for his eyes to wander and focus on a certain bouncier area.

“Yes?(——”

Fleur saw them and moved to grab them, but stopped short as she asked, “May I?”

Fleur smiled as she took hold of his right wing.

She then moved down to a more a more tempting area

Spike decided to double his efforts and snaked his tail between his legs and aimed the spade tip down between the Fleur’s.

The Fleur’s what?

with Spike attempting to do the same as he sped up stroking her with his tail,

to keep his fingers inside her as he worked her sensitive folds.

Initially surprised, Spike watched as the white mare placed her back against the wall and widened her legs while she put her left hand over her plump lower lips and spread them open.

I thought she was already facing Spike?

“Dear sweet Celestia of Equestria, that’s amazing,” she moaned looking down at him.

“You mean…she neutered me in my sleep,” Spike asked in shock with a raised eyebrow.

Fleur broke the kiss and looked stared at the mare as she said, “Octavia, what are you doing?”