Oh goodness. I'm sorry if this is OOC for them. I haven't watched the whole movie yet but I saw the moving-the-satellite-dish part, and this bloomed in my head like a glorious flower.
In hindsight, it was really the dumbest thing to do. But how could he help it? It's not like entering his mind was really an invitation for intimacy, nor was the warm, exhilarated feelings from his memory and success very poignant, but the moment just seemed...right. After that hearty clap on his shoulder, he just turned and pressed his mouth firmly to the others, as if this was a normal routine. Charles stiffened, of course, who wouldn't after such a blatant assault, but he was far from caring, and soon, it seemed they'd both relaxed into the firm press of lips to lips, him gently grasping Charles forearms, and Charles' hands twitching at his hips.
It was only once Charles moved to deepen their kiss that Erik decided this was a bad idea.
He stumbled back, embarrassment and shame coloring his face. God, what was he thinking? Charles was his friend, and a man, and oh GOD he could sense everything that was going on in his brain right now, and somehow that made his humiliation worse.
"I-I'm sorry." He mumbled as he staggered away, towards the house. Distantly, he could hear someone calling from an upstairs window (What if they saw? Bloody hell, that would make things so much better) he heard Charles running behind him, and catching up, but he couldn't force himself to move faster. Better to just let him catch up. The rejection would be kind, but a rejection nevertheless. What he deserved for presuming to be intimate with someone so normal and good and kind to him despite their differing mindsets.
"Erik, stop."
The command went straight to his mind, and he froze so suddenly he almost fell over. A hand once again clapped on his shoulder, except this time it remained as Charles hunched over, slowing his breathing. When he straightened, he looked calmly over at Erik.
"Here it comes."
"No indeed, it does not, my friend." Charles spoke aloud, beaming softly as Erik's confused gaze snapped back to him. "I merely wanted to tell you that I hold no grudge for your...rather exuberant response to our triumph. It was a natural response in such a moment, and does nothing to change our friendship or my view of you personally."
Erik sorted through this response, and slumped his shoulders in relief at the conclusion he found. They were fine. He turned to continue walking back to the mansion, when suddenly Charles caught his arm and pulled him back. Stumbling slightly, he regained footing just in time for Charles to press a kiss to his cheek. Erik lifted a hand to his face, touching the spot briefly as Charles walked briskly away.
"You did not let me finish," Charles sent back as he walked. "I was going to say if you're up for those kinds of activities any other time, I'll gladly participate. In ANY activities you might think of, actually."
And the doors of the mansion shut quietly behind Charles, as a dumbfounded Erik stood left behind as the world as he knew it exploded behind his eyes.