Womb Seal (Obex Totalis)

Luna halts her steps as she notices the slow dribble of cum about to leak from her womb through her cervix. Remembering her MSE-classes (Magical Sex Education) she swiftly casts a spell.

"Obex Totalis!"

Immediately, a shimmer passes over her womb, only briefly visible through her skin from the outside, before vanishing again.

"Oh dear... that was close." Luna mumbles to herself while picking up her previous pace. "Good thing I learned that sealing spell. It's a lot more useful than I initially thought."

That the spell is normally used as a way to prevent seed from spilling INSIDE, isn't something Luna cares overly much about.

That sealing the cum inside, will perhaps magically prolong the duration at which it stays virile for a minimum of twenty times the normal timespan, simply isn't information that Luna is privy into.

The spell lasts until it is dispelled.

What are the consequences?