The sensations, when taken together, left Severus euphoric, blessed out on sensation. It wasn't exactly neat or perfect, but for a first time, with a boy be was trying so hard to continue to hate, it ranked in the top ten of life experiences.

Marked and soiled by his enemy, Severus just held on until the shallow sounds of Sirius' breath reminded him that he'd reach his peak soon enough. Severus urged him on. Squeezed him tight. He bit his lower lip, and then his tongue. And finally wrapped his fingers in the Gryffindor's hair.

"I won't beg you to come, you idiot, but... Please... Merlin, please!"