Not tried a professional non-sexual massage, but I've had plenty of massages in massage parlours where I've always fucked the masseuses afterwards; that's what you pay for! Some of the girls are very good and give you a proper massage, others just do it to get you hard before they put the condom on. The most memorable one I had was a massage with a young Thai whore who slid up and down my body, covered in oil, before she slid onto my cock.
So, if I had a woman or guy massaging me I'd certainly get a hard-on as I associate massages with fucking.:tongue: