Spilled Seeds (слэш)

Since Snape found Harry in the woods and took punishment into his own hands, Harry was craving more of the same. Though they still haven't talked about what they were doing with each other - they kept doing it.
This is how Harry find's himself being punished for distractedly (itching solution on caged away cocks will do that to you) ruining ingredients and spilling dittany seeds in the storage room. What better way to punish Harry, but to have him kneel nakedly in said spilled seeds?
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This is a continuation of "Just out for a walk" and "Returning for more": You can read this work without having read the previous stories. Just assume a shoddily established relationship, because those two did not talk it out ;)