We're 18 and Crazy 》Sastiel AU

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Cas' eyes widened a bit. "You...You do?"

Sam nodded and smiled. "Yeah...I've wanted to for a while, but I couldn't think of a way to tell you."

"Do you...want to tonight?"

"Now."

"Now?"

"Yes."

Cas started to say something, but Sam quickly placed their lips together, his hands sliding under Cas' shirt.

Cas pulled away and looked down at him. "You're positive?"

"Yes, Cas! I am!" Sam said as he pulled off Cas' shirt.

Cas pulled off Sam's shirt and licked his lips. He started kissing all over his chest, stomach, neck, jaw; anywhere he could reach for the moment. As he sucked a small hickey into his collarbone, Cas gripped the waistband of Sam's jeans and pulled them down. Sam lifted his hips a little to help Cas.

Sam was...nervous, of course, but he wanted this. He really and truly did.

Cas pulled away from Sam and threw his pants aside. He looked down at his boxers and slowly pulled them off of him. He licked his lips as Sam's cock sprang free. He ducked his head and immediately went for Sam's hole, licking and sucking it.

Sam closed his eyes and moaned Cas' name. He clutched the blanket tightly, his back arching off of it as Cas pushed his tongue inside of him.

Cas closed his eyes and kept at it, pushing his tongue deeper into him. He moaned against him as he reached up and grabbed Sam's cock, stroking him slowly.

Sam softly cried out. "Cas, please! I need you!" He moaned as Cas' hand tightened around his cock.

Cas pulled away from Sam to catch his breath before going back in, moving his tongue and hand faster.

Sam's back arched completely off the blanket as he came, screaming Cas' name. Thank God they were alone.

Cas pulled away and let go of his cock. He licked the cum off of Sam's stomach before pulling off his pants and boxers. He climbed on top of Sam who wrapped his legs around Cas' waist.

Sam looked up at Cas, panting heavily. "Please..." He wrapped his arms around Cas' shoulders, his nails digging into his shoulder blades.

Cas captured Sam in a kiss before placing the tip of his cock into his hole. Sam gasped against his mouth, his grip on his shoulders tightening.

Cas kept pushing into him, slowly as not to hurt him. He stopped moving as he bottomed out and waited for Sam to adjust. He pulled away from his lips and looked down at him.

"Oh, please...move, Cas, please..."

Cas started to slowly rock his hips, letting out a small grunt. Sam was tight and hot. He's never been with anyone who was this tight. It felt fucking amazing.

Sam cried out and lifted his hips, giving Cas a better angle. "F-Faster!"

Cas started to rock his hips a little faster as he buried his head in Sam's neck. He grunted in Sam's ear and reached between them, grabbing Sam's cock and stroking it in time with his thrusts. As he got faster, his hand moved faster as well, making Sam moan and cry out loudly. He found his prostate and with gently, but firm thrusts, he hit it, making Sam squeak.

It wasn't long before Sam came on their stomachs and Cas' hand and Cas came inside him. Sam was actually ashamed of himself for cuming that fast, but he couldn't help it. It felt so...good!

Sam panted and looked up at Cas who was licking his hand clean. He watched as ducked his head and licked his stomach, then wiped the cum off of his own stomach and swallowed that as well. "Cas...I..."

"Hm?" Cas slowly pulled out of Sam and looked down at him.

Sam shook his head. "I'm sorry that I didn't last long..."

"Sam, I don't care about that. It was your first time." Cas softly kissed jawline before getting off of him, making Sam's arms and legs drop. He pulled Sam up and they started to dress.

They finished dressing and stood up. Sam picked up the blanket and folded it, then placed it in the trunk. He closed it and went back to Cas who wrapped his arms around him. "You were so gentle, Cas..." Sam muttered into his hair as he hugged him back.

"Well, I wanted to make your first time memorable. I didn't want to just...have sex with you. I wanted to make love with you. And that's what I did." Cas held on to him, hugging him tightly.

Sam smiled and held him close. "I love you so much, Cas."

"I love you too, Sammy."