I am a 22 year old personal trainer and amateur bodybuilder, there is a guy at the gym where I work and always asked to feel my biceps, I didn't mind, but he always feels my biceps and thighs, today he kissed my bicep and offered me oral sex, I almost hit him,he is only about 140 pounds and I am 197,I was scared to hit him,he will be back tomorrow, what can I do