Jace looked at Alec like he'd hung the moon and the stars just for him, and it was probably incredibly stupid to get feelings over a blowjob of all things, but this was Alec. This was Alec and his parabatai, and he was in love and he was never going to forgive himself if he got emotional over this, Angel save him.

He was just... in love and so incredibly fucking turned on, and Alec was giving him permission and that just clicked something in Jace's brain and made him groan, greedy and wanting and let him finally let go. His fingers tightened in Alec's hair, grip firm but not pulling, just trying to anchor himself somehow as his back bowed and he let out a low, hoarse growl of sound that was partly Alec's name and partly just pure, uncensored need, coming hard and fast down the throat of the man he'd been in love with since he was a teenager.