Spike thought he was just in for a nice, calm day with Rarity, but the white mare had other plans. See, she'd been in heat for a while, and none of the stallions she'd gotten with just hadn't done it for her. However, after mentioning it to Twilight, she recommended Spike, who was surprisingly good in bed. They were having a good time until Rarity gets thrown into the worst blight she'd ever experienced. Spike walked in on her trying to pleasure herself and... well... he cures her of her ailment.