The hum of the engine and the vibration of the road beneath her seat fuel her arousal as she drives, her chest heaving with each breath. Her tits, barely contained by her shirt, pop out unexpectedly, drawing her attention to her own smooth, round flesh. The sight of her erect nipples sends a jolt of desire between her legs, and she can't help but imagine a strong, rough hand cupping her breast, pinching the taut peak.