On His Knees
Severus gasped as he looks down to see Harry playing with his cock that was still confined behind his underwear.
He watches stroke his cock through the fabric while staring at Severus. "If only we did this sooner, Severus, we could be having more fun," Harry said and with that, he stopped stroking momentarily to pull down the underwear.
Once he did, the cock sprang up freely and Harry licked his lips at the sight. He could feel his mouth watering seeing how big cock the cock was.
"Well, Potter? I'm waiting for your demonstration," Severus said lustfully.
Harry grabs the cock, stroke it before putting the entire length in his mouth in one go.
"Fuck! Oh fuck, Potter!" Severus cries out at the same time as Harry have started bobbing up and down to suck.
It's been long ago since Severus had oral sex and the feeling of someone's warm mouth on his cock was giving him pleasure that he haven't felt since then.
Harry was indeed skilled with his bobbing and tongue. He would sometimes take out the cock from his mouth and lick the pre-cum from top to bottom like a lollipop.
Severus have put his hand on top of Harry's head and was pushing his cock more deeper inside his mouth.
Severus was moaning uncontrollably and he knows the both of them were about to come soon.
His head was thrown back in pleasure and he was busy deep throating Harry that he didn't see that he was stroking his own cock, furiously as he too was too deep in pleasure.
"Fuck baby, yes," Severus murmurs and with a loud groan, he came inside Harry's mouth who came right after.
Severus loosens his grip so that Harry could pull away from the cock. However, come was dribbling down in his mouth as he pulls away.
"Come here, Potter," Severus murmurs.
Harry moves closer to Severus who licks the remaining come off of him before kissing him deeply.
The two kissed and one of them moaned as the kiss became more heated. It was Severus who stopped the kiss.
"Potter..."
"Harry," Harry began with a smile, "call me Harry."
And Severus could do at least that. "Harry," he said slowly and Harry's grin became wider when Severus said it.
That was the best thing he heard all day from his lover.