He had to admit there was a certain sweetness to the image of Pepper and Steve cuddling and touching each other like that, and maybe they both really needed that. Tony cuddled, but he wasn't...like Steve.
Positioning himself, Tony lay down on the bed, stretching out and putting his head down between her legs and parted her folds with his fingers so when Steve watched, he could see the motions his tongue made against her clearly. He started slow, letting the tip of his tongue circle her clit a few times before he flicked it over it, then moved it down to tease her entrance, lapping up her wetness as he went.