Shadoom, one of the many things I have learned since getting on line and finding places like this is that there is no mainstream. There are so many variations, so much individuality, it's almost mind boggling.

If sex, as in the sex act itself, is important to you (and others here) then that is the way you must go. My preferences will be different from yours, and from most others. Your's are different from mine, and others. Sounds close enough to mainstream for me.

As long as you can find a partner whose needs and desires coincide with yours (not necessarily match but complement) then you will likely have a fulfilling relationship, no matter what kinks are or are not involved.