The spell activates

"Rosa I'm cumming! Ahhhhh!" Siora exclaims as she holds herself against your hips. You tighten your legs around her, holding her in place as her hips buck. Her whole body tenses up as you feel her cock swell inside you, just before the first of many spurts of cum splashes into your womb. The moment her cum touches your womb, you are both surrounded by a brilliant light. The whole magic circle the two of you are laying in has begun glowing brightly. Another splash of cum inside you and you can feel the overflowing magic fill the both of you. Another pulse and the chain across your nipples shatters into a million pieces. This magic is strong enough to even break that curse!

For a full thirty seconds Siora pumps you full of her cum. The more and more she fills you, the more you feel the tingle of your magical power mixing with hers and coalescing into something much bigger.

When she finally finishes, she pulls her length out of you. Seemingly completely spent, she rolls off you and lays on her back next to you, taking a moment to catch her breath. You roll towards her and give her a loving embrace, letting the excess of her cum dribble out onto your thigh.