What kind of experiments would you conduct with your penis/pussy if nothing limited you? ⇐ General

[Anonymous]

Since adolescence, I was wondering what other way I could masturbate or what sensations I could experience with my genitals; the most harmless thing I tried was hot/ice water. I used the hot one so that it was on the verge of what the hand can tolerate, and the cold one just from the tap (sometimes it comes out very cold), as it turned out, it was very pleasant in hot water, I also tried masturbating using toothpaste instead of lubricant, the sensations must be said to be frosty ))) I also tried various objects in the urethra, the thickest was a pencil, and a long spiral of varnished wire about 20 cm, not that it turned out to be pleasant, rather unusual)
To this day I’m looking for something to try) Tell me who and what and how did you indulge? Share your ideas)
And I would also like to know what experiments you would conduct with your own or someone else's genitals if you were not limited in any way?