This is what happens in chapter 09 of my fanfiction, Life and Love. Please check it out on my account. I'm Chikorita-Trainer1
Damian closed his eyes and rested his lips upon Colin’s.
It wasn’t a peck; it lingered. Both boys breathed deeply through their noses, trying to steady their heart rates. Damian’s pulse quickened and he could hear it pounding in his head. Colin in turn was shaking a little from nervousness and also from excitement.
After about ten seconds, the boys parted and opened their eyes.
Neither boy knew what to say. So they didn’t say anything.
They kissed again.
However, Damian began to get more aggressive, as was his nature, and gripped Colin’s shoulders, as if to keep him in place, even though he wasn’t going anywhere.
Colin gasped a little and pulled away about a millimeter, before Damian pulled him back to his mouth.
Damian opened his lips and closed them over Colin’s still-closed mouth, trying to deepen the connection in some way. Colin didn’t stop him, either. The orphan opened his mouth to take a deep breath and allowed Damian to cover it with his own. They breathed into each other’s mouths for a second, and then Colin pushed him away.
“Dami-- Damian, wait,” he stuttered. “Slow down.”
“S-sorry,” said Damian, now stroking Colin’s hair.