Shining Armor always had a taste for mares and stallions, though he was worried about mentioning his desires to his loving wife. But he should have known that the Princess of Love would accept her husband no matter what, and she gave him the go ahead to seek a potential stallion he'd like to bed. To her surprise, his choice was their Crystaller: Sunburst. Now both ponies want to get the nerdy unicorn in their bed... and in their pants...