The doctor's eyes gleam with lust as he leads the twinks through a series of 'tests.' He spreads their legs, runs his fingers along their inner thighs, making them gasp. He leans in, his breath hot on their ears, instructing them to stroke their cocks. The twinks comply, their hands moving in sync, their breaths coming in ragged pants. The doctor watches, his own cock straining against his pants, as the twinks bring themselves closer to the edge. He leans in, his tongue flicking out to taste their pre-cum, sending them over the edge into a shuddering orgasm.