1boys, 16 years old, handsome, cute guys, big chest, come to the front of the class and take off his shirt to more visually demonstrate to the other students the male muscular system, blue jeans, belt, lecture hall, bokeh
<lora:add_detail:1>, <lora:åV5:0.8>, <lora:Waistbands_III:0.6> waistband,