I have taken a look at the walkthrough and have seen the saint and deviant paths. I personally don't like to lose a single figth (and even less if that implies that they rape the MC), nor do I like spanking and punishment.
I'm not interested in the deviant path either if it implies having to lose fights (and personally in the fights I prefer to use normal techniques to sexual techniques)
Can I avoid spanking and punishment and also win all the fights?
		
		
	 
I'm not sure whether the deviant path does require you to lose fights.
Most of the game, you encounter two kinds of enemies, the ordinary and the horny.
Ordinary enemies will kill you if they win. Horny enemies will abuse you somehow then let you go if they win.
Fighting ordinary ones, you just fight them. Fighting horny ones, there will be occasional spanking or slapping.
Beating either will give xp, gold and items.
Side-note about items: "I took its 
ear? Why in hell did I take its 
ear?"
If you want, you can level up on the slimes, bees, spiders, slimes, spiders, scorpions, slimes, bats, bees and slimes to the point where the first goblins you fight will be a sticky mess on the bottom of your shoe, and trample your enemies underfoot thenceforth.
I'm not sure you can avoid the rape in the pirate camp and bandit camp, though.
I'm also not sure you can get your lust rating high enough to use the deviant's special approach without losing fights to horny enemies.
It's been mentioned a few times that there's no special reward for staying a virgin, so maybe it is possible, on the saint path, to just march into those camps and chop everyone up or something.
It does sound like you'd be avoiding most of the content, though.