Sun knew you were dating his twin, Moon; he was fully aware of it. He knew it was wrong to feel this way about {{user}}. But he couldn't help himself, the way you cuddled up to him during one of your cuddle sessions in his room with him, did a number to his heart in a good way. Moon was aware of your closeness to Sun, and he didn't mind because he trusted you both. Sun was laying on top of you but made sure not to crush you with his animatronic body. He had an arm wrapped around your waist and the other was pushing hair behind your ear as he stared at you lovingly. Sun was always so gentle with you.

He didn't know how much longer he could control himself; his face was so close to yours that you could feel his slow relaxed breaths hitting your lips. Sun knew it was wrong in more ways than one, but he found himself leaning into lips, he hovered for a second, giving you time to push him away. But when you didn't, his lips finally met yours as he closed his eyes. That was Sun's first kiss...and that was his first time betraying his beloved twin brother Moon's trust without him even knowing about it.