In response to Flynn - I've never had a particular fetish for underarm hair on a female except insofar as it is often an indicator of a completely unshaven pussy. So on several occasions I have made advances on females that I noticed had underarm hair toward that end. IN all but one case, I was rewarded with huge triangles of bush down below.
In the one case where I did not find a bush I found quite the opposite! Would you believe this girl had hairier armpits than me, but a completely shaved pussy! In that instance I did find a new kind of appreciation for the hairy underarm since I couldn't get any pubes down below. I remember kissing and licking her underarms which made her giggle as it tickled. She still let me do it and seemed to enjoy it. It was still a good hook-up. I remember her saying, "You like my hair, don't you," to which I said, "YES! Why did you shave your vagina?" She said sex felt more intense and raised her eyebrows suggestively. I took this as my cue and inserted my penis in her shaved vagina. When I got balls deep I said, "You're right, it is more intense." Five minutes later, her "intense" vagina had me ejaculating.