As you can no doubt see, I'm massively behind with my Primeval fic reading. I'm sorry I'm only reading and commenting now. This story is seriously HOT and I definitely approve of the pairing! :-) I really like the way you start off with Lester being the confident half (with Stephen practically stuttering in shock and disbelief) to Lester being the vulnerable one as he asks Stephen to come home with him and initially thinks that he's been rejected. I love this exchange in the end:

“Ah. I see. I'll...” Lester took a deep breath and stood almost to attention. The brittleness of his stance was obvious.

“No.” Stephen pulled Lester against him. “I'd love to. I want to see if your tongue's only wicked with words.” He reached down and squeezed Lester's cock. “And I'd love this inside me.”

Lester sagged against Stephen for an instant before he regained his composure as he drawled, “I'm sure that can be arranged.”