Female led relationships discussion

I’ve come across multiple stories about Mistresses having an orgasm from being fucked by their partners, which is a lovely outcome for anyone hoping to be dominated in that way by their Mistress. I feel sure others share my curiosity regarding those who have experienced this type of climax. For those with experience; does the act itself provide mental stimulation leading to orgasm, or are you physically stimulated by the strap-on toy? Do you prefer classic harnesses or strapless options? If it is primarily mental, what specific thoughts trigger the release? It likely isn’t a simple either/or situation, but any insights will help me and others decide if certain strap-ons offer better value. Thanks beforehand.