i (40y bisex male/crossdresser) am new to it too. just before corona began i had a labrador as visitor for a few hours. i licked his balls as a welcome and he seemed to take a liking in that and he licked me back as i was on all fours. not much more happened sadly, he didn't try to mount me or anything and of course i didn't force him or anything, just offered myself as invitingly as i could. But being licked like that was awesome anyhow.
It reingited the fire in me, and now that i'm still working from home every afternoon and 1 full day i finaly have enough time at home at my disposal to take care for a friend of my own. So now everything is stable again i'm looking to find a nice male puppy, preferably a dutch stephard because stephards and i always click on some weird nice level, they take a liking in me and i love them <3 .