Prompt: Masterpiece, highres, male focus, (1boy, slim, 28yo), short hair, messy hair, (goatee), cycling uniform, riding a  bycicle, speed, pants down, exposed ass,  closeup, from behind, looking back, shocked face, blush, butt plug, sweaty, road, trees, valley, surrounded by cyclists, sunny
Negative prompt: easynegative, badhandv4