When I would coach her I would insist sge go topless. I would also have her use a bit more exaggerated perfect form to prevent her slight forward slouching. Thus would cause the barbell knurled sections to scrap against her nipples. The sexual stimulation as her nipples grew more and more inflamed really worked as it irritated her physically abd mentally while stimulated her sexually. Thus made her horney abd angry, the perfect combination when pushing someone through a normal workout snd turning it into a grueling more productive one. I would taunt her to do more and challenge her female "machosism" saying things like: "I bet your daddy was be disappointed you weren't a boy" she had daddy issues. She would get so enraged she would continue until her nipples were bleeding. I would then have one of her training partners anal penitrate her....she was not a fan of back door action but as her coach I knew it was the best fir reasly pushing her stimulation to a high level. The combination anal stim and extreme nipple play it hard to beat. She sure hated my for it. But hthe next day she would pose in front of the mirror flecing her new larger bicep peaks.