And FYI, the way people are hitting those critical successes on caress is by spamming CTRL+R in the roll screen until they hit that critical success that gives them the charm. I doubt anyone is farming it "honestly", that'd be insane.
I 'caressed' my way from ~25 Charm to ~85 by doing two, two hour foreplay sessions a day with Juno at a time I couldn't get anywhere with Rebecca at all, even with her being a 'Daddy's Girl' and my playing the old 'Rise from the Ashes' character who qualified as old enough. 'Caress' until it greyed-out, then one 'Kiss' and then back to 'Caress' twice more
etc ad absurdum. That Juno has a 275 Kissing from all that 'slut-cuddling' as I called it, so I did it a lot, but days go by pretty quick when you're training twice, then the Arena and bounty and back home for more shamelessly groping Juno and stuffing her senseless and the rest of the day at Furry's or crafting.
I'd play an hour before work, an hour or two after work and maybe a four hour session on days off. Not every day, but most days. I see MoR as a long-term type of RPG/strategy game. I just like 'living' in a world where I go to the bar and there's naked teen sluts crawling around giving blowjobs as you play poker and I go home to a household where the hotties never wear more than collars and cuffs and crawl around offering even more than the sluts at Furry's.