@Jazzy_Butts personal trainer using sex as a reward to turn fat old men into fit old men. Like, they're technically getting paid to be a personal trainer, like how a pornstar is technically getting paid to act/get filmed. But we all know they really getting paid to fuck. Keep up with your diet or exercise, you can beat off while she's changing. Both and you get a handy/beej. Go above and beyond, maybe beat her at something and you can put it wherever you want.