Derek's fingernails grew an inch or so as they did when he shifted into a werewolf. He was doing this by choice. He was still in control. He made sure of it. No matter how much he was going to have with Stiles, (and believe me, he was going to have fun with him) he knew his safety was the top priority. It was dangerous for a human to be with a werewolf. Stiles liked a bit of danger in his life. It gave it flavour and spice. It made things interesting. Derek pushed Stiles body back with such force that Stiles body fell flat and his head dangled off the end of the bed, smacking against the wooden frame of the bed with a dull thud and his neck gave a creak as the bones were flexed. His jacket had been loose on his body, and as his body arched back over the end of the bed, it slowly fell off of Stiles' body and landed on the floor in a heap, revealing the plain, white, buttoned up shirt he had worn to school that day. Stiles wasn't hurt at all. The adrenaline pumping through his veins blocked out any pain he might have felt in a normal situation. But of course, this wasn't a normal situation.
Derek's face was by his in an instant.
"Stiles! Are you okay?"
Whilst Stiles would normally have appreciated his concern, now was not the time.
"Yeah, I'm fine. Don't worry, don't stop." He breathed.
Derek looked at him questioningly, but who was he to deny what they both wanted? Besides, the brief pause had almost ruined the moment. Almost. Stiles didn't care if Derek fucking bit him, nothing would ruin this moment. Nothing. Stiles felt Derek pull his shoes and socks off and throw them to the floor, and then he felt Derek's warm hands rubbing slowly up his chest. Stiles pushed his body closer to the touch, arching his back off of the bed and up towards Derek's ravaging hands. Once Derek reached the top of Stiles' shirt, he began to work his way back down, only this time, undoing the buttons of his shirt as he went. Although he could have done it in no time at all, Derek decided to tease Stiles and cherish the moment, brushing slightly against his skin as he undid the final button and Stiles body became fully visible to him. Pushing the sides of Stiles' unbuttoned shirt aside, Derek's head descended upon Stiles' body and he ran his tongue all the way up from just beneath his bellybutton all the way up to Stiles' collarbone. But he didn't stop there. His tongue continued up Stiles' neck, over his chin until he finally found Stiles' mouth again. Derek's tongue forced its way back into Stiles' mouth, and during the kiss, Derek pulled Stiles back upright and his shirt fell off of him, revealing his upper body in all its glory.
Stiles was looking directly into Derek's eyes and saw the gleam appear there when Stiles was fully shirtless. There was such must lust, so much want, so much need. Derek made Stiles feel wanted. He made him feel valued. Something nobody else in this world had been able to do, since his mother. Derek returned Stiles' gaze, and they stared into each others' eyes for a moment.
Stiles removed the distance between their heads, placing his forehead against Derek's and whispering in his ear, "It seems only fair, that if I'm as exposed as this, you be just as exposed."
Before he even checked to see if Derek understood what he meant, Stiles was reaching for his skin clad thin white jumper-shirt and pulling it upwards, revealing the light copper tan skin beneath. Derek lifted his arms into the air as his shirt sleeves came undone and he too, was fully shirtless. They both sat close to each other, marvelling at the others' body, before finally Stiles leaned forward and kissed Derek tenderly on the lips. He placed a hand on Derek's cheek and Derek laid back, Stiles being pulled with him. His right hand on Derek's left cheek as he kissed him, Stiles' left hand searched Derek's marvellous body until he found his Derek's right nipple and he began to caress it. He used his thumb to rub circles around it and then tweaked it with his thumb and index finger. The action cause Derek to get an instant nipple-on, reaction just the way Stiles had wanted him to.
Derek let out a low moan that only spurred Stiles on, and then began to grind his body against Stiles, only their jeans and underwear separating their bodies now. Stiles began to grind his body back in response. Being his first time, Stiles wasn't very good with the rhythm, but Derek wordlessly guided him with his body and eventually he got the hand of it. He became good enough to make Derek release a low growl from his chest.
Moving his right hand down from Derek's cheek, he began to pleasure Derek's left nipple in the same way, whilst moving his left hand further down Derek's ample chest and coming to a halt at his bellybutton, caressing it with his thumb gently, before swiftly moving even further down Derek's body, until he reached his denim jeans. Breaking away from a kiss from Derek to inhale deeply, Stiles looked down at Derek's jeans and began to unbutton them slowly and pull the zipper down. He pulled the jeans down Derek's legs and discarded them on the floor. Derek's package was clearly visible through his boxers and whilst Stiles appreciated the size, he couldn't help but wince. This didn't go unnoticed by Derek. He sat up and leaned in towards Stiles, "I won't hurt you. I promise."