Assuming by partner you don’t mean a one-night stand, hook-up or casual fling…
Though “much” is a very relative term, it’s impossible to find someone who has an identical drive or libido. The chemical, emotional and physical factors that influence an individual’s drive are too complex & varying to pinpoint a constant to compare it with.
Types? There are what - (takes off shoes) maybe a dozen sexual positions and a hundred (give or take) fetishes? Lover’s who live by the rules: variety is spice of life and sex should be a give and take normally wouldn’t find themselves asking that question to one another.
Anyone who looks back and has a difficult time recalling the last time they initiated sex should look inside themselves and search for more important answers: Why can’t you recall the last time? What is it about your partner that prevents you from getting behind the driver’s wheel? Don’t you get a charge / ego boost when your significant other initiates sex? (The answer should be: fuck yeah!) Imagine the feeling they’d get if you did a little intiating on your own.
I get occasional flak for voicing this to people I am / have been intimate with, but I truly feel a dynamic, passionate sex life is the most important aspect of a relationship. It enables you to express how you feel for your partner. It creates a blend of feelings that range from euphoria, satisfaction, peace and contentment. After a night of passion; any troubles are erased, food tastes better, air smells sweeter and your senses and soul are picqued. The reason orgasms are sticky is because they’re like the proverbial glue that binds people together.
An individual’s desire to please one’s partner should override any concerns about experimentation (adventure).
If inhibitions preclude experimentation, tastes are too polarized and a general desire to meet one another’s sexual needs doesn’t exist, the relationship doesn’t stand a chance of succeeding.
On preview…Sorry - Didn’t intend to come off preaching ‘pop psychology’ and oversimplifying things via sloganeering. YMMV. Sex is very important - but it’s something that should be pondered and deliberated over…it’s meant to be enjoyed.