I hadn't really meant it as a challenge, but it's almost like Jack takes it that way anyway, his eyes going wide as he punches his hips forward, burying himself so deep inside me. And then he has a hand around me too, in a tight grip that has every muscle in my body winding tight.

"Oh," I breathe when he starts stroking me in time with his thrusting, every movement making electric shocks zing up my spine. I've never in my life felt something like this before, never felt anything even half as good and it's all I can do to keep clinging to Jack's broad shoulders, to just let myself feel.

I'm getting close, can feel it in the way my balls are drawing up tight and every muscle in my body is starting to clench. But Jack gets there first, his face contorting in a way I've seen before, though never quite like this. He's... amazing. That's the only word for it. He's amazing and beautiful and he loves me. He whines my name, his hand still tight around me, and my whole back bows under the force of it, my toes curling as I feel the whole wave rock through. Me feels huge inside me then as everything goes tight and I spill right over his fingers, shuddering through the shock of it, gasping for breath and I think I must white out as I fall back onto the mattress.