A/N: Thank you so much to everyone who reviewed!
Jace groaned in pain as Alec entered him, and Alec stopped, worried for Jace. He didn't want to hurt Jace, but after he held still for a few moments, half-sheathed in the tight heat, Jace said, "Go." And Alec gently thrust into him. After a few more gentle thrusts to get Jace used to the feeling, Alec couldn't hold back any longer, he began to slam into Jace. And as he angled his thrusts a bit he was rewarded with a moan of pleasure from Jace.
Jace still felt a measure of pain, and the foreign, somewhat uncomfortable feeling of being filled, but so too did he feel intense pleasure every time Alec slammed into his prostate. Soon Jace was rocking back against Alec, wrapping a hand around his own member and stroking in time with Alec's thrusts.
Jace tightened his legs around Alec, pulling himself back into him with every thrust, and Alec gripped Jace's hips as he pounded into him, both were mumbling incoherent sounds and moaning each other's names as they neared climax.
Sweat glistened on their muscular bodies, and in the dim light of the low-burning fire outside the tent they glimmered, Alec thought Jace had never looked more beautiful. As Alec changed his angle a bit, allowing for deeper thrusts while still giving Jace pleasure, and with a few more slams, he knew he was close.
Jace increased the pace of his strokes, and that along with Alec's pounding into his prostate was driving him towards completion. With a final thrust Alec slammed into Jace deeply, spilling his seed with a moan. And Jace came seconds later, his pearly white seed splattering across his chest. As his orgasm played out Alec pulled out of Jace and collapsed down beside him, snuggling into his side as exhaustion overwhelmed him.
For a moment, all Alec heard was Jace's labored breathing, and for a moment—just a second, he questioned what he'd just done. But as soon as Jace turned on his side to look at him, all Alec's worries fled. Jace was staring at him with a happy, pre-coital expression, and Alec knew he didn't regret what they'd just done.
Jace snuggled close to Alec, wrapping himself back around the other Shadowhunter and placing a kiss on his cheek. "I love you, Alec." Jace murmured, nuzzling his face into Alec's neck. Alec tangled his legs with Jace's, burying his face in the other boy's soft hair, "I love you too." He said, wrapping an arm around Jace and letting sleep come.
A/N: So, that may be the last chapter. I could eventually add more, but only if you ask. Anyway, I hope you enjoyed this fic, :P And if you want more Jalec by me, I have another on my profile, and more will be following that one soon, :P And I wanna thank anyone who reviews in advance, and all of you who have already reviewed, you guys are the best!