In a large bowl, whisk the orange and lime juices, sour cream, ½ teaspoon salt, and ¼ teaspoon pepper.
Add the cabbage, corn, and jalapeño and toss to combine. Let sit, tossing occasionally, for 10 minutes.
Meanwhile, heat the oil in a large skillet over medium-high heat.
Season the shrimp with ½ teaspoon salt and ¼ teaspoon pepper. Cook until opaque throughout, 2 to 3 minutes.
Serve the shrimp with the tortillas and the slaw.