It's just not as hot without biting, scratching, and spanking, involved.
…reunions, she felt, were not much more than a scratching at the vague itch of memory. And like scratching, they rarely helped—indeed, scratching often made matters worse, as any dermatologist would t...
(p. pr. & vb. n.) of Scratch
(adv.) With the action of scratching.
Real scratching is superior to masturbation, in my opinion.