Stein noticed the way his dominating kisses turned Birkin on, and continued them, pressing deeper as his hand worked its way a little higher. He paused to reach for his bedside table, extracting the lube and slicking his fingers one-handed, then thrusting them quickly deep into Birkin's body once more.

"I have your heart in my hand, Birkin," he purred into the other man's ear. "And I'm going to take the rest of your body, too."