"Just this once," she pleads, her voice barely audible. He nods, stepping closer. She reaches out, tentatively touching the thick bulge. He hisses, pushing into her hand. She rubs him through his shorts, feeling him grow harder. He reaches down, pulling her hand away, and pops the button on his shorts. His cock springs free, standing tall and proud. She gasps, eyes wide, before leaning in to lick the pre-cum beading at the tip.