Pietro Maximoff x Reader ~ First!

You've never kissed anyone before. Well, not in a romantic way. Though you had a huge crush on your best friend, Pietro, who was a mutant. Exactly. Mutant. Your parents didn't exactly like him because of it... okay, they made it clear, you can't see him anymore. That's the other story that you didn't care about it and continued seeing him. You knew Pietro would joke and remind you everytime for at least 10 years that you didn't have the first kiss in age of 19. So you kept it quiet and never told him that you wanted something more from your relationship. He surely had some other girls in this Xavier's Mansion where he lived, mutant girls who could truly understand him. Now you were so bored that you both decided to play truth or dare. You were always choosing truth, and he was choosing dare.
 - I dare you, to... - you closed your eyes thinking. - Oh, I know! I dare you to kiss Logan! - you smirked as Quicksilver grinned.
 - Challenge accepted. - He said and in one second you saw a silver blur, and he was back. - With tongue. - He showed his white teeth in a grin. You laughed, sitting on the grass. - So... truth or dare?
 - Dare. - You said this time. 
 - Hmm... I dare you to... eat grass! - he said and dramatically pointed the plant. You shrugged your arms, took some of the grass and ate it quickly. - Hmh. - Pietro pouted. - So now truth. - He decided.
 - ...hmm... - and a stupid idea came to your mind - who was your first kiss? - you smirked at him. He was thinking for a while and groaned loudly.
 - I don't remeeeembeeer! - he whined dramatically falling on the grass, with his head on your lap. - And yours? - he asked casually. And now your face turned scarlet. 
 - S-Some guy... - you mumbled looking away. In his unnatural speed Pietro moved and sat in front of you, with his eyes widened. - What? What are you staring at?
 - You didn't have the first kiss, did you? - you bit your lip and looked away. - Oh my God, (Nickname)! - he gasped covering mouth with his hands. - You're like... like the young old lady without cats!
 - Shut up. - You mumbled hugging yourself.
 - So your lips are virgins? - you punched him in the arm. - Auch!
 - Pietro! S-Shut up already! I didn't have the first kiss, happy?! - you growled and sighed angrily. - Jesus. You're such a jerk sometimes. - He grimaced and then smiled. He had an idea. 
 - Well that can be easily fixed! - he said excited and pulled your face closer, kissing you passionately. Your eyes widened few times as you froze, shocked by his actions. Well that was unexpected. But soon you melted in his arms, closing your eyes and kissing him back. When he finally pulled away after few minutes, he was grinning. - You're an incredible kisser for a person who never did that before. - You blushed deeply when he said that. 
 - W-Well... you're a good kisser too. - He pouted.
 - Only 'good'?! - he asked 'deeply hurt'.
 - Alright, alright, you're an amazing kisser, I admit it. Happy? - he nodded with a huge smile. - You're such a jerk.
 - You're such a beauty. 
 - Wha-ughm!? - he connected your lips with his again, in a soft, long kiss. You relaxed in one second, kissing him back again. 
 - How about a new game, who can kiss for the longest time? - he proposed and you nodded with a smile. - I am so going to win. - He smirked.
 - Pietro!