It sounds like you are very fortunate to have a girlfriend who would take that journey with you. Now that you’re more clear about what you like and what you don’t though, tread very carefully if you want to make this long term or a marriage. Being the man, even the submissive masculine man at home is important if you’re wired that way. Bringing too much weirdness into the sex can ruin it because at some point, she might just prefer a good fuck with a man who likes to fuck and doesn’t need the circus. Some women like the circus and some don’t, but know who you’re with before going there. What we’re willing to experiment with in our youth isn’t always what we like once the realities of life like kids and back aches kick in.