Definitely for this, imagine....

Naruto watching Sakura sleep softly, her body turned away from him by a campfire, his eyes following her figure from the gorgeous pink strands of her hair, down her back, to rest at her gorgeous ass. Maybe he becomes overwhelmed with lust, knowing he feels this way, but knowing their relationship is almost brother and sister. Maybe he has the overwhelming desire to enjoy her, intimately, knowing he could never do so much as cop a feel given her reflexes. Like a gentle breeze in the night his blade slips between her shoulder blades and enters her unsuspecting heart. There's a gasp, as she abruptly wakes, confused, followed by another as he expertly twists the blade, sundering her most important organ. She shudders, breathes raspily a couple more times before she finally relaxes, a warm stream of urine exiting between her thighs as Naruto stares at her ass, his devilish smirk appearing...

Yeah.