A Mother's Choice (слэш)

When Sleipnir was born, Loki did not have the heart to give him to the All-Father. Finally fed up with Asgard's treatment of him, he flees the Golden Realm with his son.
Centuries later, while hiding on Midgard, he meets a man in a red and gold suit and a heart that shines like the Tesseract.
Now, Loki will have something else to love and protect, and Sleipnir might just have a father. But what will Asgard and Midgard make of Loki's choice? Will the unlikely new family manage to handle all the challenges thrown their way?