He didn't get all the way down - not wanting to shift his position too much - so his lips eventually trailed back up, kissing every rib, until they found the dark nub of Finn's nipple. He flicked it with his tongue and then gently sucked on it as his fingers searched lower.

Finally, they found the clasp of Finn's trousers, and pausing for a few seconds - waiting in case Finn said no - he slid the button free and carefully pulled the fly open.