Would a guy turn down a massage from a woman he had sex with if he has a girlfriend?

A while ago this guy said I could practice massage on him. Because I was going to massage school. And when we hooked up he asked me to give him a massage. But I didn't because I wasn't ready. But now I am and I need someone to practice on. But I'm not sure if he'll let me because he might think I'm trying to have sex with him. When really I'm trying to give him a professional massage.

He may have a girlfriend (I'm not sure)
Would a guy turn down a massage from a woman he had sex with if he has a girlfriend?
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