Adrenaline surges as he hits the highway, his massive cock throbbing in his underwear. He's got the open road and no time for distractions. Unzipping, he reveals his thick, veiny dick, already glistening with pre-cum. The wind rushing through the open window, he jerks off, his grip tight, his strokes steady. His balls tighten, his abs clench, and with a guttural groan, he blows his load, cum streaking his boxers and soaking through.